java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 16:57:41,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 16:57:41,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 16:57:41,090 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 16:57:41,091 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 16:57:41,091 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 16:57:41,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 16:57:41,096 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 16:57:41,097 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 16:57:41,099 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 16:57:41,100 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 16:57:41,100 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 16:57:41,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 16:57:41,103 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 16:57:41,104 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 16:57:41,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 16:57:41,106 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 16:57:41,116 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 16:57:41,118 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 16:57:41,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 16:57:41,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 16:57:41,121 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 16:57:41,126 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 16:57:41,126 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 16:57:41,126 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 16:57:41,127 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 16:57:41,128 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 16:57:41,129 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 16:57:41,129 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 16:57:41,134 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 16:57:41,134 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 16:57:41,135 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 16:57:41,135 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 16:57:41,135 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 16:57:41,136 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 16:57:41,136 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 16:57:41,137 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 16:57:41,161 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 16:57:41,162 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 16:57:41,163 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 16:57:41,163 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 16:57:41,163 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 16:57:41,163 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 16:57:41,163 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 16:57:41,164 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 16:57:41,165 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 16:57:41,165 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 16:57:41,165 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 16:57:41,165 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 16:57:41,166 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 16:57:41,166 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 16:57:41,166 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 16:57:41,167 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 16:57:41,167 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 16:57:41,167 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 16:57:41,167 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 16:57:41,167 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 16:57:41,167 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 16:57:41,168 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 16:57:41,168 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 16:57:41,168 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 16:57:41,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 16:57:41,168 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 16:57:41,168 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 16:57:41,169 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 16:57:41,170 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 16:57:41,171 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 16:57:41,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 16:57:41,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 16:57:41,171 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 16:57:41,171 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 16:57:41,171 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 16:57:41,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 16:57:41,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 16:57:41,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 16:57:41,247 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 16:57:41,248 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 16:57:41,249 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-07-21 16:57:41,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/d811bc8a0/c2a306c2c030435db82bcc0ebfeb3ba2/FLAGab06cc12b [2018-07-21 16:57:42,241 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 16:57:42,242 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-07-21 16:57:42,296 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/d811bc8a0/c2a306c2c030435db82bcc0ebfeb3ba2/FLAGab06cc12b [2018-07-21 16:57:42,319 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/d811bc8a0/c2a306c2c030435db82bcc0ebfeb3ba2 [2018-07-21 16:57:42,333 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 16:57:42,340 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 16:57:42,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 16:57:42,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 16:57:42,351 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 16:57:42,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:57:42" (1/1) ... [2018-07-21 16:57:42,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5fd596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:42, skipping insertion in model container [2018-07-21 16:57:42,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:57:42" (1/1) ... [2018-07-21 16:57:42,811 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 16:57:44,202 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 16:57:44,221 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 16:57:45,259 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 16:57:45,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45 WrapperNode [2018-07-21 16:57:45,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 16:57:45,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 16:57:45,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 16:57:45,589 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 16:57:45,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:45,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:46,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 16:57:46,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 16:57:46,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 16:57:46,038 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 16:57:46,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:46,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:46,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:46,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:46,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:47,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:47,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... [2018-07-21 16:57:47,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 16:57:47,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 16:57:47,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 16:57:47,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 16:57:47,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 16:57:47,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 16:57:47,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 16:57:47,668 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 16:57:47,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 16:57:47,668 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 16:57:47,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 16:57:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 16:57:47,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 16:57:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 16:57:47,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 16:57:47,669 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 16:57:47,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 16:57:47,670 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 16:57:47,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 16:57:59,899 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 16:57:59,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:57:59 BoogieIcfgContainer [2018-07-21 16:57:59,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 16:57:59,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 16:57:59,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 16:57:59,904 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 16:57:59,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:57:42" (1/3) ... [2018-07-21 16:57:59,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d40b921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:57:59, skipping insertion in model container [2018-07-21 16:57:59,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:57:45" (2/3) ... [2018-07-21 16:57:59,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d40b921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:57:59, skipping insertion in model container [2018-07-21 16:57:59,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:57:59" (3/3) ... [2018-07-21 16:57:59,908 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label10_true-unreach-call.c [2018-07-21 16:57:59,915 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 16:57:59,923 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 16:57:59,994 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 16:57:59,995 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 16:57:59,995 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 16:57:59,995 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 16:57:59,995 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 16:57:59,995 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 16:57:59,995 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 16:57:59,996 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 16:57:59,996 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 16:58:00,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-21 16:58:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-21 16:58:00,053 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:58:00,054 INFO L358 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] [2018-07-21 16:58:00,054 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:58:00,061 INFO L82 PathProgramCache]: Analyzing trace with hash -2012113436, now seen corresponding path program 1 times [2018-07-21 16:58:00,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:58:00,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:00,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:58:00,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:00,113 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:58:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:58:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:58:00,652 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 16:58:00,652 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 16:58:00,653 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:58:00,661 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 16:58:00,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 16:58:00,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 16:58:00,682 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-07-21 16:58:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:58:14,049 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-07-21 16:58:14,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 16:58:14,052 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-07-21 16:58:14,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:58:14,103 INFO L225 Difference]: With dead ends: 3968 [2018-07-21 16:58:14,104 INFO L226 Difference]: Without dead ends: 2842 [2018-07-21 16:58:14,114 INFO L578 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 [2018-07-21 16:58:14,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-07-21 16:58:14,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-07-21 16:58:14,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-07-21 16:58:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-07-21 16:58:14,318 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 54 [2018-07-21 16:58:14,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:58:14,319 INFO L471 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-07-21 16:58:14,319 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 16:58:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-07-21 16:58:14,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-21 16:58:14,331 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:58:14,331 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 16:58:14,332 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:58:14,332 INFO L82 PathProgramCache]: Analyzing trace with hash 2103128128, now seen corresponding path program 1 times [2018-07-21 16:58:14,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:58:14,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:14,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:58:14,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:14,334 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:58:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:58:14,867 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:58:14,867 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 16:58:14,867 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 16:58:14,867 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:58:14,871 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 16:58:14,871 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 16:58:14,871 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 16:58:14,871 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 6 states. [2018-07-21 16:58:32,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:58:32,044 INFO L93 Difference]: Finished difference Result 7236 states and 13035 transitions. [2018-07-21 16:58:32,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 16:58:32,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-07-21 16:58:32,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:58:32,117 INFO L225 Difference]: With dead ends: 7236 [2018-07-21 16:58:32,118 INFO L226 Difference]: Without dead ends: 5261 [2018-07-21 16:58:32,130 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 16:58:32,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2018-07-21 16:58:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5234. [2018-07-21 16:58:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5234 states. [2018-07-21 16:58:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 8155 transitions. [2018-07-21 16:58:32,339 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 8155 transitions. Word has length 124 [2018-07-21 16:58:32,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:58:32,339 INFO L471 AbstractCegarLoop]: Abstraction has 5234 states and 8155 transitions. [2018-07-21 16:58:32,340 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 16:58:32,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 8155 transitions. [2018-07-21 16:58:32,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-21 16:58:32,356 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:58:32,357 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 16:58:32,357 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:58:32,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1901218304, now seen corresponding path program 1 times [2018-07-21 16:58:32,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:58:32,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:32,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:58:32,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:32,359 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:58:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:58:32,769 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:58:32,769 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 16:58:32,770 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 16:58:32,770 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:58:32,771 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 16:58:32,771 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 16:58:32,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 16:58:32,772 INFO L87 Difference]: Start difference. First operand 5234 states and 8155 transitions. Second operand 5 states. [2018-07-21 16:58:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:58:44,515 INFO L93 Difference]: Finished difference Result 14851 states and 23632 transitions. [2018-07-21 16:58:44,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 16:58:44,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-07-21 16:58:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:58:44,568 INFO L225 Difference]: With dead ends: 14851 [2018-07-21 16:58:44,571 INFO L226 Difference]: Without dead ends: 9623 [2018-07-21 16:58:44,590 INFO L578 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 [2018-07-21 16:58:44,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9623 states. [2018-07-21 16:58:44,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9623 to 9521. [2018-07-21 16:58:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9521 states. [2018-07-21 16:58:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9521 states to 9521 states and 13562 transitions. [2018-07-21 16:58:44,912 INFO L78 Accepts]: Start accepts. Automaton has 9521 states and 13562 transitions. Word has length 156 [2018-07-21 16:58:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:58:44,913 INFO L471 AbstractCegarLoop]: Abstraction has 9521 states and 13562 transitions. [2018-07-21 16:58:44,913 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 16:58:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 9521 states and 13562 transitions. [2018-07-21 16:58:44,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-21 16:58:44,919 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:58:44,919 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 16:58:44,919 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:58:44,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1810629788, now seen corresponding path program 1 times [2018-07-21 16:58:44,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:58:44,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:44,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:58:44,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:44,922 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:58:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:58:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:58:45,225 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 16:58:45,225 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 16:58:45,225 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:58:45,226 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 16:58:45,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 16:58:45,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 16:58:45,227 INFO L87 Difference]: Start difference. First operand 9521 states and 13562 transitions. Second operand 4 states. [2018-07-21 16:58:56,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:58:56,459 INFO L93 Difference]: Finished difference Result 36982 states and 55611 transitions. [2018-07-21 16:58:56,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 16:58:56,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2018-07-21 16:58:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:58:56,586 INFO L225 Difference]: With dead ends: 36982 [2018-07-21 16:58:56,586 INFO L226 Difference]: Without dead ends: 27467 [2018-07-21 16:58:56,640 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 16:58:56,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27467 states. [2018-07-21 16:58:57,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27467 to 27434. [2018-07-21 16:58:57,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27434 states. [2018-07-21 16:58:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27434 states to 27434 states and 37678 transitions. [2018-07-21 16:58:57,352 INFO L78 Accepts]: Start accepts. Automaton has 27434 states and 37678 transitions. Word has length 170 [2018-07-21 16:58:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:58:57,353 INFO L471 AbstractCegarLoop]: Abstraction has 27434 states and 37678 transitions. [2018-07-21 16:58:57,353 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 16:58:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand 27434 states and 37678 transitions. [2018-07-21 16:58:57,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-07-21 16:58:57,380 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:58:57,380 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-21 16:58:57,380 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:58:57,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1337591412, now seen corresponding path program 1 times [2018-07-21 16:58:57,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:58:57,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:57,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:58:57,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:58:57,382 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:58:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:58:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 309 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-21 16:58:58,092 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 16:58:58,092 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 16:58:58,093 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 330 with the following transitions: [2018-07-21 16:58:58,095 INFO L201 CegarAbsIntRunner]: [0], [1], [1453], [1457], [1463], [1467], [1469], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [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], [3183], [3184], [3188], [3192], [3203], [3207], [3211], [3215], [3219], [3223], [3227], [3231], [3242], [3246], [3250], [3254], [3258], [3261], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3297], [4262], [4265], [4266], [4267], [4269], [4270] [2018-07-21 16:58:58,171 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 16:58:58,171 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 16:59:07,314 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 16:59:22,472 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 16:59:22,474 INFO L272 AbstractInterpreter]: Visited 109 different actions 109 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 16:59:22,488 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 16:59:40,693 INFO L232 lantSequenceWeakener]: Weakened 318 states. On average, predicates are now at 71.3% of their original sizes. [2018-07-21 16:59:40,693 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 16:59:41,723 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 16:59:41,724 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 16:59:41,725 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-21 16:59:41,725 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:59:41,725 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 16:59:41,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 16:59:41,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 16:59:41,726 INFO L87 Difference]: Start difference. First operand 27434 states and 37678 transitions. Second operand 8 states. Received shutdown request... [2018-07-21 17:00:56,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 17:00:56,551 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 17:00:56,556 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 17:00:56,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:00:56 BoogieIcfgContainer [2018-07-21 17:00:56,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 17:00:56,558 INFO L168 Benchmark]: Toolchain (without parser) took 194223.80 ms. Allocated memory was 303.6 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 232.7 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 836.2 MB. Max. memory is 5.3 GB. [2018-07-21 17:00:56,559 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 303.6 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 17:00:56,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3247.36 ms. Allocated memory was 303.6 MB in the beginning and 379.1 MB in the end (delta: 75.5 MB). Free memory was 231.7 MB in the beginning and 182.6 MB in the end (delta: 49.1 MB). Peak memory consumption was 124.6 MB. Max. memory is 5.3 GB. [2018-07-21 17:00:56,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 448.26 ms. Allocated memory was 379.1 MB in the beginning and 387.4 MB in the end (delta: 8.4 MB). Free memory was 182.6 MB in the beginning and 255.2 MB in the end (delta: -72.6 MB). Peak memory consumption was 92.7 MB. Max. memory is 5.3 GB. [2018-07-21 17:00:56,561 INFO L168 Benchmark]: Boogie Preprocessor took 1558.16 ms. Allocated memory was 387.4 MB in the beginning and 642.8 MB in the end (delta: 255.3 MB). Free memory was 255.2 MB in the beginning and 501.2 MB in the end (delta: -246.0 MB). Peak memory consumption was 83.3 MB. Max. memory is 5.3 GB. [2018-07-21 17:00:56,562 INFO L168 Benchmark]: RCFGBuilder took 12303.70 ms. Allocated memory was 642.8 MB in the beginning and 891.3 MB in the end (delta: 248.5 MB). Free memory was 501.2 MB in the beginning and 569.0 MB in the end (delta: -67.8 MB). Peak memory consumption was 326.5 MB. Max. memory is 5.3 GB. [2018-07-21 17:00:56,562 INFO L168 Benchmark]: TraceAbstraction took 176656.33 ms. Allocated memory was 891.3 MB in the beginning and 2.3 GB in the end (delta: 1.4 GB). Free memory was 569.0 MB in the beginning and 1.4 GB in the end (delta: -802.0 MB). Peak memory consumption was 584.7 MB. Max. memory is 5.3 GB. [2018-07-21 17:00:56,567 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 303.6 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3247.36 ms. Allocated memory was 303.6 MB in the beginning and 379.1 MB in the end (delta: 75.5 MB). Free memory was 231.7 MB in the beginning and 182.6 MB in the end (delta: 49.1 MB). Peak memory consumption was 124.6 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 448.26 ms. Allocated memory was 379.1 MB in the beginning and 387.4 MB in the end (delta: 8.4 MB). Free memory was 182.6 MB in the beginning and 255.2 MB in the end (delta: -72.6 MB). Peak memory consumption was 92.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1558.16 ms. Allocated memory was 387.4 MB in the beginning and 642.8 MB in the end (delta: 255.3 MB). Free memory was 255.2 MB in the beginning and 501.2 MB in the end (delta: -246.0 MB). Peak memory consumption was 83.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 12303.70 ms. Allocated memory was 642.8 MB in the beginning and 891.3 MB in the end (delta: 248.5 MB). Free memory was 501.2 MB in the beginning and 569.0 MB in the end (delta: -67.8 MB). Peak memory consumption was 326.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 176656.33 ms. Allocated memory was 891.3 MB in the beginning and 2.3 GB in the end (delta: 1.4 GB). Free memory was 569.0 MB in the beginning and 1.4 GB in the end (delta: -802.0 MB). Peak memory consumption was 584.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while BasicCegarLoop was constructing difference of abstraction (27434states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (13603 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 176.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 128.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2378 SDtfs, 12922 SDslu, 1991 SDs, 0 SdLazy, 22236 SolverSat, 6117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 360 GetRequests, 334 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27434occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9965666041275796 AbsIntWeakeningRatio, 0.10060975609756098 AbsIntAvgWeakeningVarsNumRemoved, 32.109756097560975 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 1023 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 833 NumberOfCodeBlocks, 833 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 828 ConstructedInterpolants, 0 QuantifiedInterpolants, 563998 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 461/532 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_17-00-56-582.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_17-00-56-582.csv Completed graceful shutdown