java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label39_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:52:33,561 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:52:33,564 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:52:33,576 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:52:33,576 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:52:33,578 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:52:33,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:52:33,581 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:52:33,582 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:52:33,583 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:52:33,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:52:33,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:52:33,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:52:33,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:52:33,587 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:52:33,588 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:52:33,589 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:52:33,591 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:52:33,593 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:52:33,595 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:52:33,596 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:52:33,597 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:52:33,600 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:52:33,600 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:52:33,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:52:33,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:52:33,603 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:52:33,604 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:52:33,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:52:33,606 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:52:33,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:52:33,607 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:52:33,607 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:52:33,607 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:52:33,613 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:52:33,613 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:52:33,614 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 11:52:33,642 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:52:33,642 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:52:33,643 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:52:33,643 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:52:33,643 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:52:33,644 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:52:33,644 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:52:33,644 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:52:33,644 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:52:33,645 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:52:33,645 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:52:33,646 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:52:33,646 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:52:33,647 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:52:33,647 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:52:33,648 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:52:33,648 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:52:33,648 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:52:33,648 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:52:33,648 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:52:33,649 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:52:33,649 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:52:33,649 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:52:33,649 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:52:33,651 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:52:33,651 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:52:33,651 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:52:33,651 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:52:33,651 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:52:33,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:52:33,652 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:52:33,652 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:52:33,652 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:52:33,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:52:33,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:52:33,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:52:33,727 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:52:33,727 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:52:33,728 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label39_false-unreach-call.c [2018-07-24 11:52:34,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0983975ba/f55ecff754644e80abec1d45217cbc1d/FLAG393155650 [2018-07-24 11:52:34,633 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:52:34,634 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label39_false-unreach-call.c [2018-07-24 11:52:34,665 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0983975ba/f55ecff754644e80abec1d45217cbc1d/FLAG393155650 [2018-07-24 11:52:34,694 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0983975ba/f55ecff754644e80abec1d45217cbc1d [2018-07-24 11:52:34,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:52:34,707 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:52:34,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:52:34,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:52:34,715 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:52:34,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:52:34" (1/1) ... [2018-07-24 11:52:34,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cca5ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:34, skipping insertion in model container [2018-07-24 11:52:34,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:52:34" (1/1) ... [2018-07-24 11:52:35,026 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:52:36,031 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:52:36,052 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:52:36,749 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:52:37,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37 WrapperNode [2018-07-24 11:52:37,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:52:37,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:52:37,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:52:37,004 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:52:37,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:37,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:37,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:52:37,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:52:37,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:52:37,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:52:37,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:37,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:37,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:37,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:38,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:38,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:38,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... [2018-07-24 11:52:38,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:52:38,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:52:38,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:52:38,209 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:52:38,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:52:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:52:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:52:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 11:52:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 11:52:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:52:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:52:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:52:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:52:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 11:52:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 11:52:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 11:52:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 11:52:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:52:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:52:48,702 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:52:48,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:52:48 BoogieIcfgContainer [2018-07-24 11:52:48,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:52:48,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:52:48,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:52:48,708 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:52:48,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:52:34" (1/3) ... [2018-07-24 11:52:48,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f63650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:52:48, skipping insertion in model container [2018-07-24 11:52:48,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:52:37" (2/3) ... [2018-07-24 11:52:48,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f63650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:52:48, skipping insertion in model container [2018-07-24 11:52:48,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:52:48" (3/3) ... [2018-07-24 11:52:48,712 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label39_false-unreach-call.c [2018-07-24 11:52:48,721 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:52:48,731 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:52:48,795 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:52:48,795 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:52:48,796 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:52:48,796 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:52:48,796 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:52:48,796 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:52:48,796 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:52:48,796 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:52:48,796 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:52:48,841 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 11:52:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-24 11:52:48,859 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:48,861 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:52:48,861 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:52:48,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1479180132, now seen corresponding path program 1 times [2018-07-24 11:52:48,869 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:48,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:48,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:48,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:48,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:49,328 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 11:52:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:52:49,342 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:52:49,342 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:52:49,342 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:49,348 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:52:49,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:52:49,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:52:49,366 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-07-24 11:53:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:01,907 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-07-24 11:53:01,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:53:01,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-07-24 11:53:01,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:01,969 INFO L225 Difference]: With dead ends: 3234 [2018-07-24 11:53:01,969 INFO L226 Difference]: Without dead ends: 2388 [2018-07-24 11:53:01,982 INFO L573 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 [2018-07-24 11:53:02,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-07-24 11:53:02,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 1604. [2018-07-24 11:53:02,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 11:53:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2600 transitions. [2018-07-24 11:53:02,185 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2600 transitions. Word has length 28 [2018-07-24 11:53:02,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:02,186 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2600 transitions. [2018-07-24 11:53:02,186 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:53:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2600 transitions. [2018-07-24 11:53:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-24 11:53:02,192 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:02,192 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:53:02,193 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:53:02,193 INFO L82 PathProgramCache]: Analyzing trace with hash 319707446, now seen corresponding path program 1 times [2018-07-24 11:53:02,193 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:02,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:02,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:02,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:02,195 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:02,793 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:53:02,793 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:53:02,793 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:02,796 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:53:02,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:53:02,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:53:02,796 INFO L87 Difference]: Start difference. First operand 1604 states and 2600 transitions. Second operand 6 states. [2018-07-24 11:53:14,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:14,900 INFO L93 Difference]: Finished difference Result 4836 states and 7928 transitions. [2018-07-24 11:53:14,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:53:14,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-07-24 11:53:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:14,923 INFO L225 Difference]: With dead ends: 4836 [2018-07-24 11:53:14,924 INFO L226 Difference]: Without dead ends: 3238 [2018-07-24 11:53:14,929 INFO L573 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 [2018-07-24 11:53:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2018-07-24 11:53:15,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 3208. [2018-07-24 11:53:15,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2018-07-24 11:53:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 4989 transitions. [2018-07-24 11:53:15,024 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 4989 transitions. Word has length 108 [2018-07-24 11:53:15,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:15,025 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 4989 transitions. [2018-07-24 11:53:15,025 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:53:15,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 4989 transitions. [2018-07-24 11:53:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-24 11:53:15,033 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:15,033 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:53:15,033 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:53:15,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1154904415, now seen corresponding path program 1 times [2018-07-24 11:53:15,034 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:15,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:15,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:15,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:15,035 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:15,373 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:15,374 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:53:15,374 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:53:15,374 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:15,375 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:53:15,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:53:15,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:53:15,376 INFO L87 Difference]: Start difference. First operand 3208 states and 4989 transitions. Second operand 6 states. [2018-07-24 11:53:26,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:26,247 INFO L93 Difference]: Finished difference Result 11234 states and 17851 transitions. [2018-07-24 11:53:26,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:53:26,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-07-24 11:53:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:26,297 INFO L225 Difference]: With dead ends: 11234 [2018-07-24 11:53:26,298 INFO L226 Difference]: Without dead ends: 8032 [2018-07-24 11:53:26,317 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:53:26,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8032 states. [2018-07-24 11:53:26,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8032 to 7958. [2018-07-24 11:53:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7958 states. [2018-07-24 11:53:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7958 states to 7958 states and 11545 transitions. [2018-07-24 11:53:26,536 INFO L78 Accepts]: Start accepts. Automaton has 7958 states and 11545 transitions. Word has length 109 [2018-07-24 11:53:26,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:26,539 INFO L471 AbstractCegarLoop]: Abstraction has 7958 states and 11545 transitions. [2018-07-24 11:53:26,539 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:53:26,539 INFO L276 IsEmpty]: Start isEmpty. Operand 7958 states and 11545 transitions. [2018-07-24 11:53:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-24 11:53:26,547 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:26,547 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:53:26,548 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:53:26,548 INFO L82 PathProgramCache]: Analyzing trace with hash -382941686, now seen corresponding path program 1 times [2018-07-24 11:53:26,548 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:26,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:26,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:26,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:26,553 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:26,886 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:53:26,887 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:53:26,887 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:26,887 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:53:26,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:53:26,888 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:53:26,888 INFO L87 Difference]: Start difference. First operand 7958 states and 11545 transitions. Second operand 5 states. [2018-07-24 11:53:38,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:38,232 INFO L93 Difference]: Finished difference Result 24186 states and 36164 transitions. [2018-07-24 11:53:38,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:53:38,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-07-24 11:53:38,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:38,324 INFO L225 Difference]: With dead ends: 24186 [2018-07-24 11:53:38,324 INFO L226 Difference]: Without dead ends: 16234 [2018-07-24 11:53:38,354 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:53:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16234 states. [2018-07-24 11:53:38,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16234 to 16123. [2018-07-24 11:53:38,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16123 states. [2018-07-24 11:53:38,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16123 states to 16123 states and 22326 transitions. [2018-07-24 11:53:38,772 INFO L78 Accepts]: Start accepts. Automaton has 16123 states and 22326 transitions. Word has length 114 [2018-07-24 11:53:38,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:38,773 INFO L471 AbstractCegarLoop]: Abstraction has 16123 states and 22326 transitions. [2018-07-24 11:53:38,773 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:53:38,773 INFO L276 IsEmpty]: Start isEmpty. Operand 16123 states and 22326 transitions. [2018-07-24 11:53:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-24 11:53:38,777 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:38,777 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:53:38,777 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:53:38,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1154939758, now seen corresponding path program 1 times [2018-07-24 11:53:38,779 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:38,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:38,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:38,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:38,780 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:39,074 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:53:39,435 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:39,435 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:53:39,435 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:53:39,436 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:39,436 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:53:39,436 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:53:39,436 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:53:39,437 INFO L87 Difference]: Start difference. First operand 16123 states and 22326 transitions. Second operand 6 states. [2018-07-24 11:53:53,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:53,112 INFO L93 Difference]: Finished difference Result 50346 states and 73821 transitions. [2018-07-24 11:53:53,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:53:53,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-07-24 11:53:53,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:53,273 INFO L225 Difference]: With dead ends: 50346 [2018-07-24 11:53:53,273 INFO L226 Difference]: Without dead ends: 34229 [2018-07-24 11:53:53,366 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:53:53,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34229 states. [2018-07-24 11:53:54,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34229 to 34058. [2018-07-24 11:53:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34058 states. [2018-07-24 11:53:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34058 states to 34058 states and 47910 transitions. [2018-07-24 11:53:54,500 INFO L78 Accepts]: Start accepts. Automaton has 34058 states and 47910 transitions. Word has length 142 [2018-07-24 11:53:54,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:54,501 INFO L471 AbstractCegarLoop]: Abstraction has 34058 states and 47910 transitions. [2018-07-24 11:53:54,501 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:53:54,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34058 states and 47910 transitions. [2018-07-24 11:53:54,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-07-24 11:53:54,504 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:54,505 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:53:54,505 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:53:54,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1221008023, now seen corresponding path program 1 times [2018-07-24 11:53:54,506 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:54,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:54,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:54,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:54,507 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:54,708 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:53:54,709 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:53:54,709 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:54,709 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:53:54,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:53:54,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:53:54,710 INFO L87 Difference]: Start difference. First operand 34058 states and 47910 transitions. Second operand 4 states. [2018-07-24 11:54:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:05,135 INFO L93 Difference]: Finished difference Result 100652 states and 146193 transitions. [2018-07-24 11:54:05,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:54:05,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-07-24 11:54:05,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:05,350 INFO L225 Difference]: With dead ends: 100652 [2018-07-24 11:54:05,350 INFO L226 Difference]: Without dead ends: 66600 [2018-07-24 11:54:05,436 INFO L573 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 [2018-07-24 11:54:05,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66600 states. [2018-07-24 11:54:06,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66600 to 66574. [2018-07-24 11:54:06,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66574 states. [2018-07-24 11:54:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66574 states to 66574 states and 89119 transitions. [2018-07-24 11:54:06,687 INFO L78 Accepts]: Start accepts. Automaton has 66574 states and 89119 transitions. Word has length 177 [2018-07-24 11:54:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:06,689 INFO L471 AbstractCegarLoop]: Abstraction has 66574 states and 89119 transitions. [2018-07-24 11:54:06,689 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:54:06,689 INFO L276 IsEmpty]: Start isEmpty. Operand 66574 states and 89119 transitions. [2018-07-24 11:54:06,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2018-07-24 11:54:06,726 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:06,726 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-07-24 11:54:06,726 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:54:06,727 INFO L82 PathProgramCache]: Analyzing trace with hash 490697190, now seen corresponding path program 1 times [2018-07-24 11:54:06,727 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:06,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:06,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:06,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:06,728 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:07,362 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 142 proven. 110 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 11:54:07,363 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:54:07,363 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:54:07,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:07,388 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:54:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:07,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:54:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-07-24 11:54:08,089 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:54:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 142 proven. 110 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 11:54:08,948 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:54:08,948 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:54:08,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:08,965 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:54:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:09,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:54:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-07-24 11:54:09,353 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:54:10,326 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 142 proven. 110 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 11:54:10,328 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:54:10,329 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 11:54:10,329 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:54:10,330 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:54:10,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:54:10,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:54:10,331 INFO L87 Difference]: Start difference. First operand 66574 states and 89119 transitions. Second operand 9 states. [2018-07-24 11:54:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:32,633 INFO L93 Difference]: Finished difference Result 170543 states and 282531 transitions. [2018-07-24 11:54:32,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-24 11:54:32,633 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 330 [2018-07-24 11:54:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:33,491 INFO L225 Difference]: With dead ends: 170543 [2018-07-24 11:54:33,491 INFO L226 Difference]: Without dead ends: 92683 [2018-07-24 11:54:33,815 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1346 GetRequests, 1324 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-07-24 11:54:33,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92683 states. [2018-07-24 11:54:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92683 to 86291. [2018-07-24 11:54:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86291 states. [2018-07-24 11:54:37,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86291 states to 86291 states and 120601 transitions. [2018-07-24 11:54:37,313 INFO L78 Accepts]: Start accepts. Automaton has 86291 states and 120601 transitions. Word has length 330 [2018-07-24 11:54:37,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:37,314 INFO L471 AbstractCegarLoop]: Abstraction has 86291 states and 120601 transitions. [2018-07-24 11:54:37,314 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:54:37,314 INFO L276 IsEmpty]: Start isEmpty. Operand 86291 states and 120601 transitions. [2018-07-24 11:54:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2018-07-24 11:54:37,383 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:37,383 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2018-07-24 11:54:37,384 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:54:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1865161220, now seen corresponding path program 1 times [2018-07-24 11:54:37,384 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:37,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:37,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:37,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:37,385 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:37,773 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:54:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 84 proven. 280 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2018-07-24 11:54:38,165 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:54:38,165 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:54:38,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:38,173 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:54:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:38,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:54:38,667 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-07-24 11:54:38,667 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:54:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 84 proven. 280 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2018-07-24 11:54:39,028 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:54:39,028 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 11:54:39,028 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:39,029 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:54:39,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:54:39,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:54:39,029 INFO L87 Difference]: Start difference. First operand 86291 states and 120601 transitions. Second operand 5 states. [2018-07-24 11:54:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:47,775 INFO L93 Difference]: Finished difference Result 167421 states and 235050 transitions. [2018-07-24 11:54:47,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:54:47,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 444 [2018-07-24 11:54:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:48,163 INFO L225 Difference]: With dead ends: 167421 [2018-07-24 11:54:48,163 INFO L226 Difference]: Without dead ends: 81156 [2018-07-24 11:54:48,393 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 883 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-07-24 11:54:48,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81156 states. [2018-07-24 11:54:49,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81156 to 79500. [2018-07-24 11:54:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79500 states. [2018-07-24 11:54:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79500 states to 79500 states and 104247 transitions. [2018-07-24 11:54:50,039 INFO L78 Accepts]: Start accepts. Automaton has 79500 states and 104247 transitions. Word has length 444 [2018-07-24 11:54:50,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:50,039 INFO L471 AbstractCegarLoop]: Abstraction has 79500 states and 104247 transitions. [2018-07-24 11:54:50,040 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:54:50,040 INFO L276 IsEmpty]: Start isEmpty. Operand 79500 states and 104247 transitions. [2018-07-24 11:54:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-07-24 11:54:50,073 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:50,073 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:54:50,074 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:54:50,074 INFO L82 PathProgramCache]: Analyzing trace with hash -387258741, now seen corresponding path program 1 times [2018-07-24 11:54:50,074 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:50,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:50,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:50,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:50,076 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 11:54:51,572 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:54:51,572 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:54:51,572 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:51,573 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:54:51,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:54:51,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:54:51,574 INFO L87 Difference]: Start difference. First operand 79500 states and 104247 transitions. Second operand 4 states. [2018-07-24 11:55:01,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:01,390 INFO L93 Difference]: Finished difference Result 192451 states and 261102 transitions. [2018-07-24 11:55:01,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:55:01,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 457 [2018-07-24 11:55:01,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:01,826 INFO L225 Difference]: With dead ends: 192451 [2018-07-24 11:55:01,827 INFO L226 Difference]: Without dead ends: 112957 [2018-07-24 11:55:02,066 INFO L573 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 [2018-07-24 11:55:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112957 states. [2018-07-24 11:55:04,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112957 to 112941. [2018-07-24 11:55:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112941 states. [2018-07-24 11:55:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112941 states to 112941 states and 148358 transitions. [2018-07-24 11:55:04,858 INFO L78 Accepts]: Start accepts. Automaton has 112941 states and 148358 transitions. Word has length 457 [2018-07-24 11:55:04,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:04,859 INFO L471 AbstractCegarLoop]: Abstraction has 112941 states and 148358 transitions. [2018-07-24 11:55:04,860 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:55:04,860 INFO L276 IsEmpty]: Start isEmpty. Operand 112941 states and 148358 transitions. [2018-07-24 11:55:04,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2018-07-24 11:55:04,936 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:04,937 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:55:04,937 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:04,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1564327354, now seen corresponding path program 1 times [2018-07-24 11:55:04,937 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:04,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:04,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:04,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:04,938 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 14 proven. 55 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 11:55:06,248 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:06,249 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:55:06,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:06,264 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:06,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:09,365 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 14 proven. 55 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 11:55:09,365 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:10,124 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 11:55:10,146 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:55:10,146 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-07-24 11:55:10,146 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:55:10,147 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:55:10,147 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:55:10,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-07-24 11:55:10,147 INFO L87 Difference]: Start difference. First operand 112941 states and 148358 transitions. Second operand 3 states. [2018-07-24 11:55:17,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:17,754 INFO L93 Difference]: Finished difference Result 246063 states and 328387 transitions. [2018-07-24 11:55:17,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:55:17,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 555 [2018-07-24 11:55:17,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:18,215 INFO L225 Difference]: With dead ends: 246063 [2018-07-24 11:55:18,215 INFO L226 Difference]: Without dead ends: 133128 [2018-07-24 11:55:18,425 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1112 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-07-24 11:55:18,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133128 states. [2018-07-24 11:55:20,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133128 to 131536. [2018-07-24 11:55:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131536 states. [2018-07-24 11:55:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131536 states to 131536 states and 167299 transitions. [2018-07-24 11:55:21,769 INFO L78 Accepts]: Start accepts. Automaton has 131536 states and 167299 transitions. Word has length 555 [2018-07-24 11:55:21,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:21,770 INFO L471 AbstractCegarLoop]: Abstraction has 131536 states and 167299 transitions. [2018-07-24 11:55:21,770 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:55:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 131536 states and 167299 transitions. [2018-07-24 11:55:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 765 [2018-07-24 11:55:21,849 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:21,852 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:55:21,852 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:21,853 INFO L82 PathProgramCache]: Analyzing trace with hash 821598202, now seen corresponding path program 1 times [2018-07-24 11:55:21,853 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:21,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:21,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:21,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:21,854 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 243 proven. 73 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2018-07-24 11:55:22,647 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:22,647 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:55:22,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:22,656 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:22,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 525 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 11:55:23,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 243 proven. 73 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2018-07-24 11:55:24,570 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:24,570 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:55:24,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:24,588 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:25,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 525 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 11:55:26,152 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:26,621 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 243 proven. 73 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2018-07-24 11:55:26,623 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:55:26,625 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 11 [2018-07-24 11:55:26,625 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:55:26,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 11:55:26,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 11:55:26,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:55:26,628 INFO L87 Difference]: Start difference. First operand 131536 states and 167299 transitions. Second operand 8 states. [2018-07-24 11:55:39,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:39,439 INFO L93 Difference]: Finished difference Result 256947 states and 326791 transitions. [2018-07-24 11:55:39,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 11:55:39,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 764 [2018-07-24 11:55:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:39,886 INFO L225 Difference]: With dead ends: 256947 [2018-07-24 11:55:39,887 INFO L226 Difference]: Without dead ends: 125417 [2018-07-24 11:55:40,100 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3077 GetRequests, 3057 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2018-07-24 11:55:40,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125417 states. [2018-07-24 11:55:42,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125417 to 121459. [2018-07-24 11:55:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121459 states. [2018-07-24 11:55:42,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121459 states to 121459 states and 146032 transitions. [2018-07-24 11:55:42,321 INFO L78 Accepts]: Start accepts. Automaton has 121459 states and 146032 transitions. Word has length 764 [2018-07-24 11:55:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:42,322 INFO L471 AbstractCegarLoop]: Abstraction has 121459 states and 146032 transitions. [2018-07-24 11:55:42,323 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 11:55:42,323 INFO L276 IsEmpty]: Start isEmpty. Operand 121459 states and 146032 transitions. [2018-07-24 11:55:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2018-07-24 11:55:42,352 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:42,352 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:55:42,352 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:42,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2013135841, now seen corresponding path program 1 times [2018-07-24 11:55:42,353 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:42,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:42,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:42,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:42,354 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:43,147 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 287 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:55:43,147 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:43,148 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:55:43,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:43,156 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:43,405 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 287 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:55:48,066 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 287 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:55:48,757 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:48,757 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:55:48,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:48,773 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:49,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 287 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:55:49,546 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:50,138 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 287 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:55:50,141 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:55:50,142 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 11:55:50,142 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:55:50,144 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:55:50,145 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:55:50,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:55:50,148 INFO L87 Difference]: Start difference. First operand 121459 states and 146032 transitions. Second operand 9 states. [2018-07-24 11:56:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:56:11,485 INFO L93 Difference]: Finished difference Result 334923 states and 440929 transitions. [2018-07-24 11:56:11,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 11:56:11,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 673 [2018-07-24 11:56:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:56:12,225 INFO L225 Difference]: With dead ends: 334923 [2018-07-24 11:56:12,225 INFO L226 Difference]: Without dead ends: 207099 [2018-07-24 11:56:12,489 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2712 GetRequests, 2692 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:56:12,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207099 states. Received shutdown request... [2018-07-24 11:56:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207099 to 197340. [2018-07-24 11:56:15,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197340 states. [2018-07-24 11:56:15,508 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 11:56:15,513 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 11:56:15,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 11:56:15 BoogieIcfgContainer [2018-07-24 11:56:15,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 11:56:15,514 INFO L168 Benchmark]: Toolchain (without parser) took 220808.69 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-24 11:56:15,515 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 11:56:15,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2295.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-07-24 11:56:15,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 243.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:56:15,517 INFO L168 Benchmark]: Boogie Preprocessor took 960.85 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 922.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 11:56:15,518 INFO L168 Benchmark]: RCFGBuilder took 10495.43 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 162.0 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -131.3 MB). Peak memory consumption was 751.3 MB. Max. memory is 7.1 GB. [2018-07-24 11:56:15,519 INFO L168 Benchmark]: TraceAbstraction took 206808.90 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -236.5 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-24 11:56:15,524 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2295.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 243.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 960.85 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 922.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10495.43 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 162.0 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -131.3 MB). Peak memory consumption was 751.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206808.90 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -236.5 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 75). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 206.7s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 159.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5352 SDtfs, 38092 SDslu, 2603 SDs, 0 SdLazy, 80939 SolverSat, 15764 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 119.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9209 GetRequests, 9087 SyntacticMatches, 17 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131536occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 19.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 14810 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 8434 NumberOfCodeBlocks, 8434 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 12939 ConstructedInterpolants, 5 QuantifiedInterpolants, 17492909 SizeOfPredicates, 4 NumberOfNonLiveVariables, 6887 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 28 InterpolantComputations, 9 PerfectInterpolantSequences, 8912/10149 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label39_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_11-56-15-539.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label39_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_11-56-15-539.csv Completed graceful shutdown