java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:46:27,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:46:27,457 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:46:27,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:46:27,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:46:27,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:46:27,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:46:27,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:46:27,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:46:27,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:46:27,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:46:27,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:46:27,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:46:27,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:46:27,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:46:27,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:46:27,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:46:27,484 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:46:27,486 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:46:27,488 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:46:27,489 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:46:27,490 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:46:27,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:46:27,493 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:46:27,493 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:46:27,494 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:46:27,500 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:46:27,501 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:46:27,502 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:46:27,506 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:46:27,506 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:46:27,507 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:46:27,507 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:46:27,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:46:27,508 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:46:27,509 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:46:27,509 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 [2018-09-10 11:46:27,541 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:46:27,542 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:46:27,543 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:46:27,543 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:46:27,543 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:46:27,543 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:46:27,544 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:46:27,544 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:46:27,544 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:46:27,544 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:46:27,545 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:46:27,546 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:46:27,546 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:46:27,546 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:46:27,546 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:46:27,546 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:46:27,547 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:46:27,547 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:46:27,547 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:46:27,547 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:46:27,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:46:27,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:46:27,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:46:27,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:46:27,551 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:46:27,551 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:46:27,551 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:46:27,551 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:46:27,551 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:46:27,553 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:46:27,553 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:46:27,553 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:46:27,553 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:46:27,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:46:27,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:46:27,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:46:27,636 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:46:27,636 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:46:27,637 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-09-10 11:46:27,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dde67ab5/7c6d82480338455dbaea38659a8a6a20/FLAG060793c55 [2018-09-10 11:46:28,416 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:46:28,417 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-09-10 11:46:28,463 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dde67ab5/7c6d82480338455dbaea38659a8a6a20/FLAG060793c55 [2018-09-10 11:46:28,486 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dde67ab5/7c6d82480338455dbaea38659a8a6a20 [2018-09-10 11:46:28,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:46:28,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:46:28,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:46:28,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:46:28,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:46:28,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:46:28" (1/1) ... [2018-09-10 11:46:28,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab40953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:28, skipping insertion in model container [2018-09-10 11:46:28,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:46:28" (1/1) ... [2018-09-10 11:46:28,868 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:46:30,029 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:46:30,048 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:46:30,707 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:46:30,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30 WrapperNode [2018-09-10 11:46:30,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:46:30,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:46:30,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:46:30,946 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:46:30,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:31,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:31,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:46:31,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:46:31,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:46:31,188 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:46:31,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:31,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:31,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:31,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:31,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:31,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:32,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (1/1) ... [2018-09-10 11:46:32,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:46:32,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:46:32,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:46:32,062 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:46:32,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (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 [2018-09-10 11:46:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:46:32,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:46:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:46:32,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:46:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 11:46:32,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 11:46:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:46:32,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:46:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 11:46:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 11:46:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:46:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:46:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 11:46:32,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 11:46:45,817 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:46:45,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:46:45 BoogieIcfgContainer [2018-09-10 11:46:45,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:46:45,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:46:45,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:46:45,822 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:46:45,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:46:28" (1/3) ... [2018-09-10 11:46:45,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c96e309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:46:45, skipping insertion in model container [2018-09-10 11:46:45,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:46:30" (2/3) ... [2018-09-10 11:46:45,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c96e309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:46:45, skipping insertion in model container [2018-09-10 11:46:45,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:46:45" (3/3) ... [2018-09-10 11:46:45,826 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label31_true-unreach-call.c [2018-09-10 11:46:45,834 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:46:45,843 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:46:45,902 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:46:45,903 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:46:45,903 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:46:45,903 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:46:45,903 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:46:45,904 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:46:45,904 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:46:45,904 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:46:45,904 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:46:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-10 11:46:45,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-10 11:46:45,971 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:46:45,972 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:46:45,974 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:46:45,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2054239460, now seen corresponding path program 1 times [2018-09-10 11:46:45,982 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:46:46,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:46:46,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:46:46,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:46:46,033 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:46:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:46:46,553 WARN L175 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-09-10 11:46:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:46:46,573 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:46:46,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:46:46,574 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:46:46,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:46:46,596 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:46:46,597 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:46:46,600 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-09-10 11:47:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:47:02,274 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-09-10 11:47:02,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:47:02,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2018-09-10 11:47:02,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:47:02,316 INFO L225 Difference]: With dead ends: 3234 [2018-09-10 11:47:02,316 INFO L226 Difference]: Without dead ends: 2388 [2018-09-10 11:47:02,328 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:47:02,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-09-10 11:47:02,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-09-10 11:47:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-09-10 11:47:02,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3845 transitions. [2018-09-10 11:47:02,553 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3845 transitions. Word has length 70 [2018-09-10 11:47:02,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:47:02,555 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 3845 transitions. [2018-09-10 11:47:02,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:47:02,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3845 transitions. [2018-09-10 11:47:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-09-10 11:47:02,572 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:47:02,573 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:47:02,573 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:47:02,573 INFO L82 PathProgramCache]: Analyzing trace with hash 162715045, now seen corresponding path program 1 times [2018-09-10 11:47:02,574 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:47:02,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:02,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:47:02,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:02,577 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:47:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:47:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:47:02,884 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:47:02,885 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:47:02,885 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:47:02,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:47:02,887 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:47:02,887 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:47:02,888 INFO L87 Difference]: Start difference. First operand 2388 states and 3845 transitions. Second operand 5 states. [2018-09-10 11:47:17,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:47:17,521 INFO L93 Difference]: Finished difference Result 7257 states and 11779 transitions. [2018-09-10 11:47:17,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 11:47:17,523 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2018-09-10 11:47:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:47:17,556 INFO L225 Difference]: With dead ends: 7257 [2018-09-10 11:47:17,556 INFO L226 Difference]: Without dead ends: 4875 [2018-09-10 11:47:17,564 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:47:17,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4875 states. [2018-09-10 11:47:17,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4875 to 4829. [2018-09-10 11:47:17,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4829 states. [2018-09-10 11:47:17,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 7152 transitions. [2018-09-10 11:47:17,719 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 7152 transitions. Word has length 151 [2018-09-10 11:47:17,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:47:17,722 INFO L480 AbstractCegarLoop]: Abstraction has 4829 states and 7152 transitions. [2018-09-10 11:47:17,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:47:17,722 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 7152 transitions. [2018-09-10 11:47:17,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-09-10 11:47:17,730 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:47:17,731 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:47:17,731 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:47:17,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2097507194, now seen corresponding path program 1 times [2018-09-10 11:47:17,731 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:47:17,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:17,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:47:17,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:17,734 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:47:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:47:18,133 WARN L175 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:47:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:47:18,547 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:47:18,547 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:47:18,547 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:47:18,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:47:18,548 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:47:18,548 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:47:18,549 INFO L87 Difference]: Start difference. First operand 4829 states and 7152 transitions. Second operand 6 states. [2018-09-10 11:47:28,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:47:28,992 INFO L93 Difference]: Finished difference Result 14640 states and 22370 transitions. [2018-09-10 11:47:29,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:47:29,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 184 [2018-09-10 11:47:29,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:47:29,064 INFO L225 Difference]: With dead ends: 14640 [2018-09-10 11:47:29,065 INFO L226 Difference]: Without dead ends: 9817 [2018-09-10 11:47:29,082 INFO L604 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 [2018-09-10 11:47:29,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2018-09-10 11:47:29,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 9687. [2018-09-10 11:47:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9687 states. [2018-09-10 11:47:29,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9687 states to 9687 states and 14172 transitions. [2018-09-10 11:47:29,343 INFO L78 Accepts]: Start accepts. Automaton has 9687 states and 14172 transitions. Word has length 184 [2018-09-10 11:47:29,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:47:29,344 INFO L480 AbstractCegarLoop]: Abstraction has 9687 states and 14172 transitions. [2018-09-10 11:47:29,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:47:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand 9687 states and 14172 transitions. [2018-09-10 11:47:29,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-10 11:47:29,348 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:47:29,348 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:47:29,348 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:47:29,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1291536397, now seen corresponding path program 1 times [2018-09-10 11:47:29,349 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:47:29,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:29,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:47:29,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:29,350 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:47:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:47:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:47:29,647 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:47:29,647 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:47:29,647 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:47:29,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:47:29,648 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:47:29,648 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:47:29,648 INFO L87 Difference]: Start difference. First operand 9687 states and 14172 transitions. Second operand 6 states. [2018-09-10 11:47:37,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:47:37,336 INFO L93 Difference]: Finished difference Result 24374 states and 36284 transitions. [2018-09-10 11:47:37,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:47:37,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2018-09-10 11:47:37,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:47:37,418 INFO L225 Difference]: With dead ends: 24374 [2018-09-10 11:47:37,419 INFO L226 Difference]: Without dead ends: 14693 [2018-09-10 11:47:37,450 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:47:37,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14693 states. [2018-09-10 11:47:37,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14693 to 14601. [2018-09-10 11:47:37,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14601 states. [2018-09-10 11:47:37,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14601 states to 14601 states and 20144 transitions. [2018-09-10 11:47:37,794 INFO L78 Accepts]: Start accepts. Automaton has 14601 states and 20144 transitions. Word has length 195 [2018-09-10 11:47:37,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:47:37,794 INFO L480 AbstractCegarLoop]: Abstraction has 14601 states and 20144 transitions. [2018-09-10 11:47:37,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:47:37,795 INFO L276 IsEmpty]: Start isEmpty. Operand 14601 states and 20144 transitions. [2018-09-10 11:47:37,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-10 11:47:37,800 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:47:37,800 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:47:37,801 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:47:37,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1287485091, now seen corresponding path program 1 times [2018-09-10 11:47:37,801 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:47:37,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:37,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:47:37,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:37,802 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:47:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:47:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:47:38,090 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:47:38,090 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:47:38,090 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:47:38,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:47:38,091 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:47:38,092 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:47:38,092 INFO L87 Difference]: Start difference. First operand 14601 states and 20144 transitions. Second operand 4 states. [2018-09-10 11:47:47,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:47:47,746 INFO L93 Difference]: Finished difference Result 56523 states and 82247 transitions. [2018-09-10 11:47:47,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:47:47,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 219 [2018-09-10 11:47:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:47:47,912 INFO L225 Difference]: With dead ends: 56523 [2018-09-10 11:47:47,912 INFO L226 Difference]: Without dead ends: 41928 [2018-09-10 11:47:47,982 INFO L604 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 [2018-09-10 11:47:48,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41928 states. [2018-09-10 11:47:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41928 to 41928. [2018-09-10 11:47:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41928 states. [2018-09-10 11:47:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41928 states to 41928 states and 55841 transitions. [2018-09-10 11:47:48,931 INFO L78 Accepts]: Start accepts. Automaton has 41928 states and 55841 transitions. Word has length 219 [2018-09-10 11:47:48,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:47:48,932 INFO L480 AbstractCegarLoop]: Abstraction has 41928 states and 55841 transitions. [2018-09-10 11:47:48,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:47:48,932 INFO L276 IsEmpty]: Start isEmpty. Operand 41928 states and 55841 transitions. [2018-09-10 11:47:48,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-09-10 11:47:48,940 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:47:48,940 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:47:48,940 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:47:48,941 INFO L82 PathProgramCache]: Analyzing trace with hash 479129074, now seen corresponding path program 1 times [2018-09-10 11:47:48,941 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:47:48,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:48,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:47:48,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:47:48,942 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:47:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:47:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:47:49,186 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:47:49,187 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:47:49,187 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:47:49,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:47:49,188 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:47:49,189 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:47:49,189 INFO L87 Difference]: Start difference. First operand 41928 states and 55841 transitions. Second operand 4 states. [2018-09-10 11:48:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:48:00,954 INFO L93 Difference]: Finished difference Result 151356 states and 214769 transitions. [2018-09-10 11:48:00,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:48:00,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2018-09-10 11:48:00,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:48:01,426 INFO L225 Difference]: With dead ends: 151356 [2018-09-10 11:48:01,427 INFO L226 Difference]: Without dead ends: 109434 [2018-09-10 11:48:01,642 INFO L604 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 [2018-09-10 11:48:01,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109434 states. [2018-09-10 11:48:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109434 to 109434. [2018-09-10 11:48:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109434 states. [2018-09-10 11:48:04,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109434 states to 109434 states and 150556 transitions. [2018-09-10 11:48:04,395 INFO L78 Accepts]: Start accepts. Automaton has 109434 states and 150556 transitions. Word has length 220 [2018-09-10 11:48:04,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:48:04,396 INFO L480 AbstractCegarLoop]: Abstraction has 109434 states and 150556 transitions. [2018-09-10 11:48:04,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:48:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 109434 states and 150556 transitions. [2018-09-10 11:48:04,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-09-10 11:48:04,449 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:48:04,449 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:48:04,450 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:48:04,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1764801216, now seen corresponding path program 1 times [2018-09-10 11:48:04,450 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:48:04,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:04,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:48:04,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:04,452 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:48:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:48:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-10 11:48:04,791 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:48:04,791 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:48:04,791 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:48:04,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:48:04,792 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:48:04,792 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:48:04,799 INFO L87 Difference]: Start difference. First operand 109434 states and 150556 transitions. Second operand 3 states. [2018-09-10 11:48:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:48:16,411 INFO L93 Difference]: Finished difference Result 247449 states and 349810 transitions. [2018-09-10 11:48:16,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:48:16,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2018-09-10 11:48:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:48:17,008 INFO L225 Difference]: With dead ends: 247449 [2018-09-10 11:48:17,008 INFO L226 Difference]: Without dead ends: 138021 [2018-09-10 11:48:17,306 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:48:17,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138021 states. [2018-09-10 11:48:20,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138021 to 138021. [2018-09-10 11:48:20,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138021 states. [2018-09-10 11:48:21,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138021 states to 138021 states and 186087 transitions. [2018-09-10 11:48:21,123 INFO L78 Accepts]: Start accepts. Automaton has 138021 states and 186087 transitions. Word has length 338 [2018-09-10 11:48:21,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:48:21,124 INFO L480 AbstractCegarLoop]: Abstraction has 138021 states and 186087 transitions. [2018-09-10 11:48:21,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:48:21,124 INFO L276 IsEmpty]: Start isEmpty. Operand 138021 states and 186087 transitions. [2018-09-10 11:48:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-09-10 11:48:21,224 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:48:21,225 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:48:21,225 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:48:21,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1288138143, now seen corresponding path program 1 times [2018-09-10 11:48:21,225 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:48:21,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:21,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:48:21,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:21,227 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:48:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:48:21,551 WARN L175 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:48:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:48:22,076 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:48:22,076 INFO L197 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 [2018-09-10 11:48:22,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:48:22,093 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:48:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:48:22,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:48:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-10 11:48:22,927 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:48:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:48:24,807 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:48:24,807 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-10 11:48:24,808 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:48:24,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:48:24,809 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:48:24,809 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:48:24,809 INFO L87 Difference]: Start difference. First operand 138021 states and 186087 transitions. Second operand 5 states. [2018-09-10 11:48:38,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:48:38,150 INFO L93 Difference]: Finished difference Result 325876 states and 444370 transitions. [2018-09-10 11:48:38,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:48:38,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 423 [2018-09-10 11:48:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:48:39,260 INFO L225 Difference]: With dead ends: 325876 [2018-09-10 11:48:39,260 INFO L226 Difference]: Without dead ends: 187861 [2018-09-10 11:48:39,569 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 855 GetRequests, 841 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-10 11:48:39,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187861 states. [2018-09-10 11:48:45,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187861 to 187711. [2018-09-10 11:48:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187711 states. [2018-09-10 11:48:46,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187711 states to 187711 states and 247332 transitions. [2018-09-10 11:48:46,623 INFO L78 Accepts]: Start accepts. Automaton has 187711 states and 247332 transitions. Word has length 423 [2018-09-10 11:48:46,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:48:46,624 INFO L480 AbstractCegarLoop]: Abstraction has 187711 states and 247332 transitions. [2018-09-10 11:48:46,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:48:46,624 INFO L276 IsEmpty]: Start isEmpty. Operand 187711 states and 247332 transitions. [2018-09-10 11:48:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-09-10 11:48:46,724 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:48:46,725 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:48:46,725 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:48:46,726 INFO L82 PathProgramCache]: Analyzing trace with hash 133972798, now seen corresponding path program 1 times [2018-09-10 11:48:46,726 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:48:46,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:46,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:48:46,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:46,727 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:48:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:48:47,562 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:48:47,562 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:48:47,562 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:48:47,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:48:47,579 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:48:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:48:47,736 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:48:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:48:47,919 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:48:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:48:48,424 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:48:48,424 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:48:48,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:48:48,452 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:48:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:48:48,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:48:50,109 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:48:50,110 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:48:50,355 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:48:50,357 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:48:50,358 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-10 11:48:50,358 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:48:50,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:48:50,359 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:48:50,360 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-09-10 11:48:50,360 INFO L87 Difference]: Start difference. First operand 187711 states and 247332 transitions. Second operand 9 states. [2018-09-10 11:49:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:49:09,244 INFO L93 Difference]: Finished difference Result 481696 states and 681585 transitions. [2018-09-10 11:49:09,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-10 11:49:09,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 426 [2018-09-10 11:49:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:49:17,960 INFO L225 Difference]: With dead ends: 481696 [2018-09-10 11:49:17,961 INFO L226 Difference]: Without dead ends: 266549 [2018-09-10 11:49:18,766 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1720 GetRequests, 1699 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2018-09-10 11:49:18,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266549 states. [2018-09-10 11:49:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266549 to 266527. [2018-09-10 11:49:23,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266527 states. [2018-09-10 11:49:25,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266527 states to 266527 states and 357747 transitions. [2018-09-10 11:49:25,687 INFO L78 Accepts]: Start accepts. Automaton has 266527 states and 357747 transitions. Word has length 426 [2018-09-10 11:49:25,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:49:25,688 INFO L480 AbstractCegarLoop]: Abstraction has 266527 states and 357747 transitions. [2018-09-10 11:49:25,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:49:25,688 INFO L276 IsEmpty]: Start isEmpty. Operand 266527 states and 357747 transitions. [2018-09-10 11:49:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2018-09-10 11:49:25,851 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:49:25,852 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:49:25,852 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:49:25,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1568479446, now seen corresponding path program 1 times [2018-09-10 11:49:25,853 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:49:25,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:25,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:25,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:25,854 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:49:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-09-10 11:49:26,708 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:49:26,708 INFO L197 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 [2018-09-10 11:49:26,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:26,724 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:49:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:26,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:49:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-09-10 11:49:27,533 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:49:28,564 WARN L175 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2018-09-10 11:49:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-09-10 11:49:28,749 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:49:28,750 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:49:28,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:28,768 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:49:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:29,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:49:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-09-10 11:49:29,567 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:49:29,916 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-09-10 11:49:29,918 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:49:29,919 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 11:49:29,919 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:49:29,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:49:29,921 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:49:29,921 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-10 11:49:29,922 INFO L87 Difference]: Start difference. First operand 266527 states and 357747 transitions. Second operand 9 states. Received shutdown request... [2018-09-10 11:49:58,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-09-10 11:49:58,518 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:49:58,524 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:49:58,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:49:58 BoogieIcfgContainer [2018-09-10 11:49:58,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:49:58,525 INFO L168 Benchmark]: Toolchain (without parser) took 210025.08 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-10 11:49:58,526 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-09-10 11:49:58,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2440.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-10 11:49:58,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 242.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 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. [2018-09-10 11:49:58,528 INFO L168 Benchmark]: Boogie Preprocessor took 873.54 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 931.7 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 127.9 MB. Max. memory is 7.1 GB. [2018-09-10 11:49:58,529 INFO L168 Benchmark]: RCFGBuilder took 13756.26 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 141.0 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -124.2 MB). Peak memory consumption was 725.0 MB. Max. memory is 7.1 GB. [2018-09-10 11:49:58,530 INFO L168 Benchmark]: TraceAbstraction took 192705.54 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.4 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -474.3 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-10 11:49:58,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 2440.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 242.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 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 873.54 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 931.7 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 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13756.26 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 141.0 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -124.2 MB). Peak memory consumption was 725.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 192705.54 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.4 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -474.3 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 201]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 201). Cancelled while BasicCegarLoop was constructing difference of abstraction (266527states) and FLOYD_HOARE automaton (currently 48 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (568576 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 192.6s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 155.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4614 SDtfs, 30115 SDslu, 2060 SDs, 0 SdLazy, 65133 SolverSat, 14364 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 108.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4856 GetRequests, 4738 SyntacticMatches, 8 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 967 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266527occurred in iteration=9, 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: 22.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 440 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 5115 NumberOfCodeBlocks, 5115 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 7446 ConstructedInterpolants, 0 QuantifiedInterpolants, 6727302 SizeOfPredicates, 2 NumberOfNonLiveVariables, 3601 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 6190/6406 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_label31_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-49-58-552.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label31_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-49-58-552.csv Completed graceful shutdown