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/Problem12_label19_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 02:44:37,304 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 02:44:37,307 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 02:44:37,319 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 02:44:37,319 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 02:44:37,320 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 02:44:37,321 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 02:44:37,323 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 02:44:37,325 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 02:44:37,326 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 02:44:37,326 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 02:44:37,327 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 02:44:37,329 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 02:44:37,330 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 02:44:37,331 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 02:44:37,335 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 02:44:37,336 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 02:44:37,337 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 02:44:37,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 02:44:37,353 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 02:44:37,354 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 02:44:37,355 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 02:44:37,358 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 02:44:37,358 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 02:44:37,358 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 02:44:37,364 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 02:44:37,365 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 02:44:37,366 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 02:44:37,367 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 02:44:37,368 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 02:44:37,368 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 02:44:37,369 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 02:44:37,374 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 02:44:37,374 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 02:44:37,375 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 02:44:37,376 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 02:44:37,376 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 02:44:37,401 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 02:44:37,401 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 02:44:37,402 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 02:44:37,402 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 02:44:37,403 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 02:44:37,405 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 02:44:37,405 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 02:44:37,406 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 02:44:37,406 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 02:44:37,406 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 02:44:37,406 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 02:44:37,406 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 02:44:37,407 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 02:44:37,407 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 02:44:37,408 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 02:44:37,408 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 02:44:37,408 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 02:44:37,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 02:44:37,408 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 02:44:37,408 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 02:44:37,410 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 02:44:37,411 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 02:44:37,411 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 02:44:37,411 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 02:44:37,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 02:44:37,411 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 02:44:37,412 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 02:44:37,412 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 02:44:37,412 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 02:44:37,412 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 02:44:37,412 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 02:44:37,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 02:44:37,413 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 02:44:37,413 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 02:44:37,413 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 02:44:37,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 02:44:37,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 02:44:37,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 02:44:37,499 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 02:44:37,499 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 02:44:37,500 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label19_false-unreach-call.c [2018-07-21 02:44:37,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/e9dd703fe/f6545fb509fb4eec88349bfcb90d50d9/FLAG391969474 [2018-07-21 02:44:38,399 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 02:44:38,400 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label19_false-unreach-call.c [2018-07-21 02:44:38,462 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/e9dd703fe/f6545fb509fb4eec88349bfcb90d50d9/FLAG391969474 [2018-07-21 02:44:38,483 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/e9dd703fe/f6545fb509fb4eec88349bfcb90d50d9 [2018-07-21 02:44:38,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 02:44:38,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 02:44:38,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 02:44:38,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 02:44:38,516 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 02:44:38,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:44:38" (1/1) ... [2018-07-21 02:44:38,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e40129b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:38, skipping insertion in model container [2018-07-21 02:44:38,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:44:38" (1/1) ... [2018-07-21 02:44:38,889 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 02:44:40,065 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:44:40,084 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 02:44:41,025 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:44:41,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41 WrapperNode [2018-07-21 02:44:41,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 02:44:41,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 02:44:41,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 02:44:41,292 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 02:44:41,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:41,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:41,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 02:44:41,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 02:44:41,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 02:44:41,563 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 02:44:41,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:41,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:41,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:41,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:41,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:42,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:42,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (1/1) ... [2018-07-21 02:44:42,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 02:44:42,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 02:44:42,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 02:44:42,682 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 02:44:42,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (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 02:44:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 02:44:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 02:44:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 02:44:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 02:44:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 02:44:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 02:44:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 02:44:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 02:44:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 02:44:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 02:44:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 02:44:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 02:44:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 02:44:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 02:44:54,389 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 02:44:54,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:44:54 BoogieIcfgContainer [2018-07-21 02:44:54,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 02:44:54,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 02:44:54,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 02:44:54,394 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 02:44:54,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:44:38" (1/3) ... [2018-07-21 02:44:54,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afabd56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:44:54, skipping insertion in model container [2018-07-21 02:44:54,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:44:41" (2/3) ... [2018-07-21 02:44:54,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afabd56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:44:54, skipping insertion in model container [2018-07-21 02:44:54,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:44:54" (3/3) ... [2018-07-21 02:44:54,399 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label19_false-unreach-call.c [2018-07-21 02:44:54,409 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 02:44:54,421 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 02:44:54,495 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 02:44:54,495 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 02:44:54,496 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 02:44:54,496 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 02:44:54,496 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 02:44:54,496 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 02:44:54,496 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 02:44:54,496 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 02:44:54,497 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 02:44:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-21 02:44:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-21 02:44:54,545 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:44:54,546 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] [2018-07-21 02:44:54,547 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:44:54,551 INFO L82 PathProgramCache]: Analyzing trace with hash 527472809, now seen corresponding path program 1 times [2018-07-21 02:44:54,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:44:54,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:44:54,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:44:54,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:44:54,609 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:44:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:44:54,994 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 02:44:55,006 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:44:55,007 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 02:44:55,007 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:44:55,010 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 02:44:55,028 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 02:44:55,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 02:44:55,031 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-07-21 02:45:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:45:05,487 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-07-21 02:45:05,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 02:45:05,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-21 02:45:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:45:05,709 INFO L225 Difference]: With dead ends: 3234 [2018-07-21 02:45:05,710 INFO L226 Difference]: Without dead ends: 2388 [2018-07-21 02:45:05,720 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 02:45:05,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-07-21 02:45:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-07-21 02:45:05,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-07-21 02:45:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3845 transitions. [2018-07-21 02:45:05,928 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3845 transitions. Word has length 21 [2018-07-21 02:45:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:45:05,929 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 3845 transitions. [2018-07-21 02:45:05,929 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 02:45:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3845 transitions. [2018-07-21 02:45:05,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-21 02:45:05,938 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:45:05,938 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 02:45:05,938 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:45:05,939 INFO L82 PathProgramCache]: Analyzing trace with hash 47379755, now seen corresponding path program 1 times [2018-07-21 02:45:05,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:45:05,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:05,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:45:05,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:05,943 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:45:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:45:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:45:06,315 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:45:06,315 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 02:45:06,315 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:45:06,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 02:45:06,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 02:45:06,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:45:06,318 INFO L87 Difference]: Start difference. First operand 2388 states and 3845 transitions. Second operand 6 states. [2018-07-21 02:45:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:45:19,939 INFO L93 Difference]: Finished difference Result 9463 states and 15573 transitions. [2018-07-21 02:45:19,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:45:19,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-07-21 02:45:19,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:45:19,995 INFO L225 Difference]: With dead ends: 9463 [2018-07-21 02:45:19,996 INFO L226 Difference]: Without dead ends: 7081 [2018-07-21 02:45:20,008 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 02:45:20,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7081 states. [2018-07-21 02:45:20,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7081 to 7037. [2018-07-21 02:45:20,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7037 states. [2018-07-21 02:45:20,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 10229 transitions. [2018-07-21 02:45:20,381 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 10229 transitions. Word has length 102 [2018-07-21 02:45:20,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:45:20,382 INFO L471 AbstractCegarLoop]: Abstraction has 7037 states and 10229 transitions. [2018-07-21 02:45:20,382 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 02:45:20,383 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 10229 transitions. [2018-07-21 02:45:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-21 02:45:20,391 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:45:20,392 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 02:45:20,392 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:45:20,392 INFO L82 PathProgramCache]: Analyzing trace with hash -957537093, now seen corresponding path program 1 times [2018-07-21 02:45:20,392 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:45:20,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:20,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:45:20,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:20,400 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:45:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:45:20,628 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:45:20,628 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:45:20,629 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 02:45:20,629 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:45:20,630 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 02:45:20,630 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 02:45:20,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:45:20,631 INFO L87 Difference]: Start difference. First operand 7037 states and 10229 transitions. Second operand 6 states. [2018-07-21 02:45:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:45:28,487 INFO L93 Difference]: Finished difference Result 23489 states and 35291 transitions. [2018-07-21 02:45:28,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:45:28,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-07-21 02:45:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:45:28,588 INFO L225 Difference]: With dead ends: 23489 [2018-07-21 02:45:28,588 INFO L226 Difference]: Without dead ends: 16458 [2018-07-21 02:45:28,631 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 02:45:28,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16458 states. [2018-07-21 02:45:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16458 to 16369. [2018-07-21 02:45:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16369 states. [2018-07-21 02:45:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16369 states to 16369 states and 22454 transitions. [2018-07-21 02:45:29,146 INFO L78 Accepts]: Start accepts. Automaton has 16369 states and 22454 transitions. Word has length 110 [2018-07-21 02:45:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:45:29,147 INFO L471 AbstractCegarLoop]: Abstraction has 16369 states and 22454 transitions. [2018-07-21 02:45:29,147 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 02:45:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 16369 states and 22454 transitions. [2018-07-21 02:45:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-21 02:45:29,155 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:45:29,155 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:45:29,156 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:45:29,156 INFO L82 PathProgramCache]: Analyzing trace with hash -449839246, now seen corresponding path program 1 times [2018-07-21 02:45:29,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:45:29,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:29,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:45:29,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:29,159 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:45:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:45:29,657 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:45:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:45:29,968 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:45:29,968 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 02:45:29,968 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:45:29,969 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 02:45:29,969 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 02:45:29,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:45:29,970 INFO L87 Difference]: Start difference. First operand 16369 states and 22454 transitions. Second operand 6 states. [2018-07-21 02:45:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:45:41,645 INFO L93 Difference]: Finished difference Result 51803 states and 75178 transitions. [2018-07-21 02:45:41,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:45:41,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-07-21 02:45:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:45:41,815 INFO L225 Difference]: With dead ends: 51803 [2018-07-21 02:45:41,815 INFO L226 Difference]: Without dead ends: 35440 [2018-07-21 02:45:41,909 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 02:45:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35440 states. [2018-07-21 02:45:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35440 to 35317. [2018-07-21 02:45:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35317 states. [2018-07-21 02:45:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35317 states to 35317 states and 49474 transitions. [2018-07-21 02:45:43,069 INFO L78 Accepts]: Start accepts. Automaton has 35317 states and 49474 transitions. Word has length 135 [2018-07-21 02:45:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:45:43,070 INFO L471 AbstractCegarLoop]: Abstraction has 35317 states and 49474 transitions. [2018-07-21 02:45:43,071 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 02:45:43,071 INFO L276 IsEmpty]: Start isEmpty. Operand 35317 states and 49474 transitions. [2018-07-21 02:45:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-21 02:45:43,082 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:45:43,082 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 02:45:43,083 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:45:43,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1378793930, now seen corresponding path program 1 times [2018-07-21 02:45:43,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:45:43,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:43,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:45:43,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:45:43,084 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:45:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:45:43,435 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:45:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 28 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 02:45:43,834 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:45:43,834 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:45:43,835 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-07-21 02:45:43,838 INFO L201 CegarAbsIntRunner]: [0], [1], [1871], [1875], [1881], [1885], [1887], [1892], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1959], [1961], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2364], [2372], [2380], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2412], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2504], [3264], [3267], [3268], [3269], [3273], [3274] [2018-07-21 02:45:43,928 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:45:43,929 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:45:58,756 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 02:45:58,758 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 02:45:58,799 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 02:46:10,540 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 75.1% of their original sizes. [2018-07-21 02:46:10,541 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 02:46:11,371 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 02:46:11,372 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:46:11,373 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-21 02:46:11,373 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:46:11,378 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 02:46:11,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 02:46:11,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 02:46:11,379 INFO L87 Difference]: Start difference. First operand 35317 states and 49474 transitions. Second operand 8 states. [2018-07-21 02:46:32,928 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 02:47:52,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 02:47:52,926 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 02:47:52,932 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 02:47:52,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:47:52 BoogieIcfgContainer [2018-07-21 02:47:52,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 02:47:52,934 INFO L168 Benchmark]: Toolchain (without parser) took 194436.33 ms. Allocated memory was 309.3 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 241.3 MB in the beginning and 404.0 MB in the end (delta: -162.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 5.3 GB. [2018-07-21 02:47:52,936 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 02:47:52,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2785.99 ms. Allocated memory was 309.3 MB in the beginning and 383.8 MB in the end (delta: 74.4 MB). Free memory was 240.3 MB in the beginning and 267.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 98.5 MB. Max. memory is 5.3 GB. [2018-07-21 02:47:52,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 270.45 ms. Allocated memory is still 383.8 MB. Free memory was 267.7 MB in the beginning and 233.9 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. [2018-07-21 02:47:52,937 INFO L168 Benchmark]: Boogie Preprocessor took 1118.46 ms. Allocated memory was 383.8 MB in the beginning and 616.6 MB in the end (delta: 232.8 MB). Free memory was 233.9 MB in the beginning and 517.3 MB in the end (delta: -283.4 MB). Peak memory consumption was 98.2 MB. Max. memory is 5.3 GB. [2018-07-21 02:47:52,938 INFO L168 Benchmark]: RCFGBuilder took 11708.72 ms. Allocated memory was 616.6 MB in the beginning and 741.3 MB in the end (delta: 124.8 MB). Free memory was 517.3 MB in the beginning and 558.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 284.4 MB. Max. memory is 5.3 GB. [2018-07-21 02:47:52,939 INFO L168 Benchmark]: TraceAbstraction took 178541.84 ms. Allocated memory was 741.3 MB in the beginning and 2.6 GB in the end (delta: 1.9 GB). Free memory was 558.3 MB in the beginning and 404.0 MB in the end (delta: 154.4 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-21 02:47:52,945 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2785.99 ms. Allocated memory was 309.3 MB in the beginning and 383.8 MB in the end (delta: 74.4 MB). Free memory was 240.3 MB in the beginning and 267.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 98.5 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 270.45 ms. Allocated memory is still 383.8 MB. Free memory was 267.7 MB in the beginning and 233.9 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1118.46 ms. Allocated memory was 383.8 MB in the beginning and 616.6 MB in the end (delta: 232.8 MB). Free memory was 233.9 MB in the beginning and 517.3 MB in the end (delta: -283.4 MB). Peak memory consumption was 98.2 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11708.72 ms. Allocated memory was 616.6 MB in the beginning and 741.3 MB in the end (delta: 124.8 MB). Free memory was 517.3 MB in the beginning and 558.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 284.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 178541.84 ms. Allocated memory was 741.3 MB in the beginning and 2.6 GB in the end (delta: 1.9 GB). Free memory was 558.3 MB in the beginning and 404.0 MB in the end (delta: 154.4 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 54). Cancelled while BasicCegarLoop was constructing difference of abstraction (35317states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (10184 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 178.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 145.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 983 SDtfs, 15032 SDslu, 868 SDs, 0 SdLazy, 24914 SolverSat, 6691 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 235 GetRequests, 201 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35317occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9950800468566965 AbsIntWeakeningRatio, 0.13705583756345177 AbsIntAvgWeakeningVarsNumRemoved, 53.370558375634516 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 256 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 566 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 561 ConstructedInterpolants, 0 QuantifiedInterpolants, 370877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 75/147 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/Problem12_label19_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_02-47-52-963.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem12_label19_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_02-47-52-963.csv Completed graceful shutdown