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_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:48:38,680 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:48:38,683 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:48:38,696 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:48:38,696 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:48:38,697 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:48:38,698 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:48:38,700 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:48:38,702 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:48:38,703 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:48:38,704 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:48:38,704 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:48:38,705 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:48:38,706 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:48:38,709 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:48:38,710 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:48:38,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:48:38,715 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:48:38,726 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:48:38,727 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:48:38,729 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:48:38,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:48:38,735 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:48:38,738 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:48:38,738 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:48:38,739 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:48:38,740 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:48:38,741 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:48:38,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:48:38,745 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:48:38,745 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:48:38,746 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:48:38,746 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:48:38,748 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:48:38,749 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:48:38,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:48:38,752 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 11:48:38,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:48:38,784 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:48:38,785 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:48:38,785 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:48:38,785 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:48:38,786 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:48:38,786 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:48:38,786 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:48:38,786 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:48:38,786 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:48:38,787 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:48:38,787 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:48:38,788 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:48:38,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:48:38,788 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:48:38,789 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:48:38,790 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:48:38,790 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:48:38,790 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:48:38,790 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:48:38,791 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:48:38,791 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:48:38,791 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:48:38,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:48:38,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:48:38,793 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:48:38,793 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:48:38,793 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:48:38,794 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:48:38,794 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:48:38,794 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:48:38,794 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:48:38,794 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:48:38,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:48:38,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:48:38,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:48:38,877 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:48:38,878 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:48:38,879 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-09-10 11:48:39,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f122a86f3/0d19badc96f64a7893c04e5d073e0243/FLAGeb956d2aa [2018-09-10 11:48:39,707 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:48:39,708 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-09-10 11:48:39,740 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f122a86f3/0d19badc96f64a7893c04e5d073e0243/FLAGeb956d2aa [2018-09-10 11:48:39,756 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f122a86f3/0d19badc96f64a7893c04e5d073e0243 [2018-09-10 11:48:39,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:48:39,772 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:48:39,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:48:39,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:48:39,781 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:48:39,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:48:39" (1/1) ... [2018-09-10 11:48:39,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c38cb18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:39, skipping insertion in model container [2018-09-10 11:48:39,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:48:39" (1/1) ... [2018-09-10 11:48:40,176 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:48:41,225 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:48:41,247 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:48:41,884 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:48:42,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42 WrapperNode [2018-09-10 11:48:42,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:48:42,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:48:42,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:48:42,106 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:48:42,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:42,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:42,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:48:42,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:48:42,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:48:42,376 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:48:42,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:42,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:42,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:42,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:43,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:43,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:43,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (1/1) ... [2018-09-10 11:48:43,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:48:43,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:48:43,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:48:43,219 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:48:43,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (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 11:48:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:48:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:48:43,290 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 11:48:43,290 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 11:48:43,290 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 11:48:43,290 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 11:48:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:48:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:48:43,291 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 11:48:43,291 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 11:48:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:48:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:48:43,291 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 11:48:43,292 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 11:48:53,415 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:48:53,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:48:53 BoogieIcfgContainer [2018-09-10 11:48:53,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:48:53,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:48:53,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:48:53,420 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:48:53,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:48:39" (1/3) ... [2018-09-10 11:48:53,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfc9c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:48:53, skipping insertion in model container [2018-09-10 11:48:53,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:48:42" (2/3) ... [2018-09-10 11:48:53,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfc9c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:48:53, skipping insertion in model container [2018-09-10 11:48:53,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:48:53" (3/3) ... [2018-09-10 11:48:53,423 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label47_true-unreach-call.c [2018-09-10 11:48:53,432 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:48:53,441 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:48:53,497 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:48:53,497 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:48:53,498 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:48:53,498 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:48:53,498 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:48:53,498 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:48:53,498 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:48:53,498 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:48:53,498 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:48:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-10 11:48:53,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-10 11:48:53,544 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:48:53,545 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] [2018-09-10 11:48:53,546 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 11:48:53,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1480598295, now seen corresponding path program 1 times [2018-09-10 11:48:53,555 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:48:53,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:53,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:48:53,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:48:53,614 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:48:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:48:53,981 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 11:48:53,984 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:48:53,984 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:48:53,984 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:48:53,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:48:54,007 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:48:54,008 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:48:54,011 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-09-10 11:49:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:49:01,876 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-09-10 11:49:01,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:49:01,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-09-10 11:49:01,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:49:01,912 INFO L225 Difference]: With dead ends: 2446 [2018-09-10 11:49:01,913 INFO L226 Difference]: Without dead ends: 1604 [2018-09-10 11:49:01,925 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 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 11:49:01,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-09-10 11:49:02,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-09-10 11:49:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-10 11:49:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3014 transitions. [2018-09-10 11:49:02,109 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3014 transitions. Word has length 45 [2018-09-10 11:49:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:49:02,110 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 3014 transitions. [2018-09-10 11:49:02,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:49:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3014 transitions. [2018-09-10 11:49:02,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-10 11:49:02,121 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:49:02,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:02,122 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 11:49:02,123 INFO L82 PathProgramCache]: Analyzing trace with hash 800112090, now seen corresponding path program 1 times [2018-09-10 11:49:02,123 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:49:02,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:02,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:02,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:02,125 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:49:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:02,485 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:49:02,486 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:49:02,486 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:49:02,486 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:49:02,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:49:02,489 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:49:02,489 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:49:02,489 INFO L87 Difference]: Start difference. First operand 1604 states and 3014 transitions. Second operand 5 states. [2018-09-10 11:49:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:49:17,841 INFO L93 Difference]: Finished difference Result 4873 states and 9168 transitions. [2018-09-10 11:49:17,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 11:49:17,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2018-09-10 11:49:17,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:49:17,867 INFO L225 Difference]: With dead ends: 4873 [2018-09-10 11:49:17,867 INFO L226 Difference]: Without dead ends: 3275 [2018-09-10 11:49:17,873 INFO L604 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 [2018-09-10 11:49:17,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-09-10 11:49:17,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-09-10 11:49:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-09-10 11:49:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5443 transitions. [2018-09-10 11:49:17,997 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5443 transitions. Word has length 115 [2018-09-10 11:49:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:49:17,998 INFO L480 AbstractCegarLoop]: Abstraction has 3241 states and 5443 transitions. [2018-09-10 11:49:17,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:49:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5443 transitions. [2018-09-10 11:49:18,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-10 11:49:18,002 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:49:18,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:18,003 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 11:49:18,003 INFO L82 PathProgramCache]: Analyzing trace with hash 364952838, now seen corresponding path program 1 times [2018-09-10 11:49:18,003 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:49:18,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:18,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:18,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:18,005 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:49:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:49:18,162 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:49:18,162 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:49:18,162 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:49:18,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:49:18,163 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:49:18,163 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:49:18,164 INFO L87 Difference]: Start difference. First operand 3241 states and 5443 transitions. Second operand 4 states. [2018-09-10 11:49:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:49:27,194 INFO L93 Difference]: Finished difference Result 12687 states and 22043 transitions. [2018-09-10 11:49:27,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:49:27,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2018-09-10 11:49:27,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:49:27,252 INFO L225 Difference]: With dead ends: 12687 [2018-09-10 11:49:27,252 INFO L226 Difference]: Without dead ends: 9452 [2018-09-10 11:49:27,272 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:49:27,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2018-09-10 11:49:27,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 9452. [2018-09-10 11:49:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9452 states. [2018-09-10 11:49:27,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9452 states to 9452 states and 14496 transitions. [2018-09-10 11:49:27,676 INFO L78 Accepts]: Start accepts. Automaton has 9452 states and 14496 transitions. Word has length 121 [2018-09-10 11:49:27,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:49:27,679 INFO L480 AbstractCegarLoop]: Abstraction has 9452 states and 14496 transitions. [2018-09-10 11:49:27,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:49:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 9452 states and 14496 transitions. [2018-09-10 11:49:27,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-09-10 11:49:27,685 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:49:27,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:27,690 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 11:49:27,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1027435397, now seen corresponding path program 1 times [2018-09-10 11:49:27,690 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:49:27,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:27,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:27,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:27,692 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:49:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:28,101 WARN L175 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:49:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:49:28,398 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:49:28,398 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:49:28,399 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:49:28,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:49:28,400 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:49:28,400 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:49:28,400 INFO L87 Difference]: Start difference. First operand 9452 states and 14496 transitions. Second operand 6 states. [2018-09-10 11:49:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:49:37,636 INFO L93 Difference]: Finished difference Result 28670 states and 46344 transitions. [2018-09-10 11:49:37,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:49:37,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-09-10 11:49:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:49:37,749 INFO L225 Difference]: With dead ends: 28670 [2018-09-10 11:49:37,749 INFO L226 Difference]: Without dead ends: 19224 [2018-09-10 11:49:37,793 INFO L604 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 [2018-09-10 11:49:37,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19224 states. [2018-09-10 11:49:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19224 to 19099. [2018-09-10 11:49:38,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19099 states. [2018-09-10 11:49:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19099 states to 19099 states and 29399 transitions. [2018-09-10 11:49:38,469 INFO L78 Accepts]: Start accepts. Automaton has 19099 states and 29399 transitions. Word has length 172 [2018-09-10 11:49:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:49:38,470 INFO L480 AbstractCegarLoop]: Abstraction has 19099 states and 29399 transitions. [2018-09-10 11:49:38,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:49:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 19099 states and 29399 transitions. [2018-09-10 11:49:38,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-09-10 11:49:38,479 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:49:38,479 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:49:38,479 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 11:49:38,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1274014742, now seen corresponding path program 1 times [2018-09-10 11:49:38,480 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:49:38,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:38,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:38,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:38,481 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:49:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:38,722 WARN L175 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:49:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 76 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:49:39,130 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:49:39,130 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 11:49:39,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:39,151 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:49:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:39,261 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:49:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-09-10 11:49:39,559 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:49:39,764 WARN L175 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-10 11:49:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 76 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:49:40,483 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:49:40,483 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 11:49:40,483 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:49:40,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:49:40,484 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:49:40,484 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 11:49:40,485 INFO L87 Difference]: Start difference. First operand 19099 states and 29399 transitions. Second operand 5 states. [2018-09-10 11:49:53,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:49:53,168 INFO L93 Difference]: Finished difference Result 51511 states and 83508 transitions. [2018-09-10 11:49:53,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:49:53,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-09-10 11:49:53,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:49:53,380 INFO L225 Difference]: With dead ends: 51511 [2018-09-10 11:49:53,380 INFO L226 Difference]: Without dead ends: 32418 [2018-09-10 11:49:53,475 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 382 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:49:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32418 states. [2018-09-10 11:49:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32418 to 32229. [2018-09-10 11:49:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32229 states. [2018-09-10 11:49:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32229 states to 32229 states and 49391 transitions. [2018-09-10 11:49:54,479 INFO L78 Accepts]: Start accepts. Automaton has 32229 states and 49391 transitions. Word has length 194 [2018-09-10 11:49:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:49:54,480 INFO L480 AbstractCegarLoop]: Abstraction has 32229 states and 49391 transitions. [2018-09-10 11:49:54,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:49:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 32229 states and 49391 transitions. [2018-09-10 11:49:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-10 11:49:54,496 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:49:54,496 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:49:54,497 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 11:49:54,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1296027943, now seen corresponding path program 1 times [2018-09-10 11:49:54,497 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:49:54,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:54,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:54,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:49:54,499 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:49:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:54,773 WARN L175 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:49:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 76 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:49:55,160 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:49:55,160 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 11:49:55,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:49:55,177 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:49:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:49:55,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:49:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-09-10 11:49:55,733 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:49:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 76 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:49:56,713 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:49:56,713 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-10 11:49:56,713 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:49:56,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:49:56,714 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:49:56,715 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:49:56,715 INFO L87 Difference]: Start difference. First operand 32229 states and 49391 transitions. Second operand 5 states. [2018-09-10 11:50:06,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:50:06,334 INFO L93 Difference]: Finished difference Result 78825 states and 125025 transitions. [2018-09-10 11:50:06,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:50:06,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2018-09-10 11:50:06,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:50:06,524 INFO L225 Difference]: With dead ends: 78825 [2018-09-10 11:50:06,524 INFO L226 Difference]: Without dead ends: 46602 [2018-09-10 11:50:06,604 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 481 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-10 11:50:06,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46602 states. [2018-09-10 11:50:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46602 to 46505. [2018-09-10 11:50:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46505 states. [2018-09-10 11:50:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46505 states to 46505 states and 68113 transitions. [2018-09-10 11:50:07,974 INFO L78 Accepts]: Start accepts. Automaton has 46505 states and 68113 transitions. Word has length 243 [2018-09-10 11:50:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:50:07,974 INFO L480 AbstractCegarLoop]: Abstraction has 46505 states and 68113 transitions. [2018-09-10 11:50:07,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:50:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 46505 states and 68113 transitions. [2018-09-10 11:50:08,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-09-10 11:50:08,001 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:50:08,001 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:08,002 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 11:50:08,002 INFO L82 PathProgramCache]: Analyzing trace with hash 8176033, now seen corresponding path program 1 times [2018-09-10 11:50:08,002 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:50:08,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:08,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:08,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:08,003 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:50:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 114 proven. 139 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-09-10 11:50:08,341 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:50:08,341 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 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 [2018-09-10 11:50:08,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:08,348 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:50:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:08,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:50:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-10 11:50:08,571 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:50:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 114 proven. 139 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-09-10 11:50:09,033 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:50:09,033 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-10 11:50:09,033 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:50:09,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:50:09,034 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:50:09,034 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:50:09,035 INFO L87 Difference]: Start difference. First operand 46505 states and 68113 transitions. Second operand 5 states. [2018-09-10 11:50:21,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:50:21,134 INFO L93 Difference]: Finished difference Result 138951 states and 212270 transitions. [2018-09-10 11:50:21,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:50:21,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2018-09-10 11:50:21,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:50:21,435 INFO L225 Difference]: With dead ends: 138951 [2018-09-10 11:50:21,436 INFO L226 Difference]: Without dead ends: 92452 [2018-09-10 11:50:21,562 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 594 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:50:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92452 states. [2018-09-10 11:50:22,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92452 to 92068. [2018-09-10 11:50:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92068 states. [2018-09-10 11:50:23,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92068 states to 92068 states and 128886 transitions. [2018-09-10 11:50:23,141 INFO L78 Accepts]: Start accepts. Automaton has 92068 states and 128886 transitions. Word has length 298 [2018-09-10 11:50:23,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:50:23,142 INFO L480 AbstractCegarLoop]: Abstraction has 92068 states and 128886 transitions. [2018-09-10 11:50:23,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:50:23,142 INFO L276 IsEmpty]: Start isEmpty. Operand 92068 states and 128886 transitions. [2018-09-10 11:50:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-09-10 11:50:23,183 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:50:23,183 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:23,183 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 11:50:23,184 INFO L82 PathProgramCache]: Analyzing trace with hash 216124667, now seen corresponding path program 1 times [2018-09-10 11:50:23,184 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:50:23,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:23,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:23,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:23,185 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:50:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:50:24,153 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:50:24,154 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 11:50:24,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:24,161 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:50:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:24,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:50:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:50:24,510 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:50:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:50:24,692 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:50:24,693 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 11:50:24,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:24,710 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:50:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:24,969 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:50:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:50:25,061 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:50:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:50:25,189 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:50:25,189 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-09-10 11:50:25,190 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:50:25,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:50:25,191 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:50:25,191 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:50:25,191 INFO L87 Difference]: Start difference. First operand 92068 states and 128886 transitions. Second operand 9 states. [2018-09-10 11:50:43,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:50:43,002 INFO L93 Difference]: Finished difference Result 243029 states and 371514 transitions. [2018-09-10 11:50:43,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-10 11:50:43,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 338 [2018-09-10 11:50:43,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:50:44,369 INFO L225 Difference]: With dead ends: 243029 [2018-09-10 11:50:44,369 INFO L226 Difference]: Without dead ends: 130760 [2018-09-10 11:50:44,657 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1348 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2018-09-10 11:50:44,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130760 states. [2018-09-10 11:50:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130760 to 130652. [2018-09-10 11:50:46,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130652 states. [2018-09-10 11:50:47,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130652 states to 130652 states and 186368 transitions. [2018-09-10 11:50:47,366 INFO L78 Accepts]: Start accepts. Automaton has 130652 states and 186368 transitions. Word has length 338 [2018-09-10 11:50:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:50:47,366 INFO L480 AbstractCegarLoop]: Abstraction has 130652 states and 186368 transitions. [2018-09-10 11:50:47,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:50:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 130652 states and 186368 transitions. [2018-09-10 11:50:48,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2018-09-10 11:50:48,466 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:50:48,467 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:48,467 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 11:50:48,468 INFO L82 PathProgramCache]: Analyzing trace with hash -417512708, now seen corresponding path program 1 times [2018-09-10 11:50:48,468 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:50:48,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:48,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:48,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:48,469 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:50:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 369 proven. 193 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 11:50:49,004 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:50:49,004 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:50:49,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:49,012 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:50:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:49,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:50:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-09-10 11:50:49,407 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:50:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-09-10 11:50:49,702 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:50:49,702 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:50:49,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:49,719 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:50:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:50,081 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:50:50,234 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 451 proven. 4 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-09-10 11:50:50,235 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:50:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 451 proven. 4 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-09-10 11:50:50,482 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:50:50,482 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 14 [2018-09-10 11:50:50,483 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:50:50,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-10 11:50:50,484 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-10 11:50:50,484 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2018-09-10 11:50:50,484 INFO L87 Difference]: Start difference. First operand 130652 states and 186368 transitions. Second operand 11 states. [2018-09-10 11:50:52,745 WARN L175 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-10 11:51:17,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:51:17,112 INFO L93 Difference]: Finished difference Result 309248 states and 445790 transitions. [2018-09-10 11:51:17,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-10 11:51:17,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 458 [2018-09-10 11:51:17,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:51:17,609 INFO L225 Difference]: With dead ends: 309248 [2018-09-10 11:51:17,609 INFO L226 Difference]: Without dead ends: 179370 [2018-09-10 11:51:18,099 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1833 SyntacticMatches, 13 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2018-09-10 11:51:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179370 states. [2018-09-10 11:51:20,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179370 to 157193. [2018-09-10 11:51:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157193 states. [2018-09-10 11:51:21,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157193 states to 157193 states and 188103 transitions. [2018-09-10 11:51:21,236 INFO L78 Accepts]: Start accepts. Automaton has 157193 states and 188103 transitions. Word has length 458 [2018-09-10 11:51:21,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:51:21,237 INFO L480 AbstractCegarLoop]: Abstraction has 157193 states and 188103 transitions. [2018-09-10 11:51:21,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-10 11:51:21,237 INFO L276 IsEmpty]: Start isEmpty. Operand 157193 states and 188103 transitions. [2018-09-10 11:51:21,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2018-09-10 11:51:21,294 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:51:21,295 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 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 11:51:21,295 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 11:51:21,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1650036773, now seen corresponding path program 1 times [2018-09-10 11:51:21,296 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:51:21,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:21,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:21,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:21,297 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:51:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 327 proven. 36 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-09-10 11:51:21,705 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:51:21,705 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:51:21,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:21,715 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:51:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:21,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:51:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2018-09-10 11:51:22,036 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:51:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2018-09-10 11:51:23,206 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:51:23,207 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 4 [2018-09-10 11:51:23,207 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:51:23,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:51:23,208 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:51:23,208 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:51:23,208 INFO L87 Difference]: Start difference. First operand 157193 states and 188103 transitions. Second operand 3 states. [2018-09-10 11:51:30,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:51:30,006 INFO L93 Difference]: Finished difference Result 342504 states and 416889 transitions. [2018-09-10 11:51:30,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:51:30,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 509 [2018-09-10 11:51:30,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:51:35,538 INFO L225 Difference]: With dead ends: 342504 [2018-09-10 11:51:35,538 INFO L226 Difference]: Without dead ends: 186085 [2018-09-10 11:51:35,737 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 1018 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:51:35,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186085 states. [2018-09-10 11:51:37,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186085 to 176811. [2018-09-10 11:51:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176811 states. [2018-09-10 11:51:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176811 states to 176811 states and 209558 transitions. [2018-09-10 11:51:38,251 INFO L78 Accepts]: Start accepts. Automaton has 176811 states and 209558 transitions. Word has length 509 [2018-09-10 11:51:38,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:51:38,251 INFO L480 AbstractCegarLoop]: Abstraction has 176811 states and 209558 transitions. [2018-09-10 11:51:38,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:51:38,252 INFO L276 IsEmpty]: Start isEmpty. Operand 176811 states and 209558 transitions. [2018-09-10 11:51:38,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2018-09-10 11:51:38,288 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:51:38,288 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:51:38,289 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:51:38,289 INFO L82 PathProgramCache]: Analyzing trace with hash 637946469, now seen corresponding path program 1 times [2018-09-10 11:51:38,289 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:51:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:38,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:38,290 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:51:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 575 proven. 89 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-10 11:51:39,282 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:51:39,282 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:51:39,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:39,291 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:51:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:39,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:51:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 489 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-10 11:51:39,665 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:51:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 489 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-10 11:51:40,557 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:51:40,557 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 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:51:40,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:40,573 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:51:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:41,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:51:41,223 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 489 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-10 11:51:41,224 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:51:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 489 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-10 11:51:42,123 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:51:42,124 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-10 11:51:42,124 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:51:42,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-10 11:51:42,125 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-10 11:51:42,125 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:51:42,125 INFO L87 Difference]: Start difference. First operand 176811 states and 209558 transitions. Second operand 7 states. [2018-09-10 11:52:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:52:11,585 INFO L93 Difference]: Finished difference Result 466675 states and 616032 transitions. [2018-09-10 11:52:11,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-10 11:52:11,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 569 [2018-09-10 11:52:11,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:52:12,688 INFO L225 Difference]: With dead ends: 466675 [2018-09-10 11:52:12,688 INFO L226 Difference]: Without dead ends: 290638 [2018-09-10 11:52:13,039 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2296 GetRequests, 2279 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2018-09-10 11:52:13,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290638 states. [2018-09-10 11:52:17,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290638 to 275139. [2018-09-10 11:52:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275139 states. [2018-09-10 11:52:18,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275139 states to 275139 states and 331018 transitions. [2018-09-10 11:52:18,390 INFO L78 Accepts]: Start accepts. Automaton has 275139 states and 331018 transitions. Word has length 569 [2018-09-10 11:52:18,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:52:18,391 INFO L480 AbstractCegarLoop]: Abstraction has 275139 states and 331018 transitions. [2018-09-10 11:52:18,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-10 11:52:18,392 INFO L276 IsEmpty]: Start isEmpty. Operand 275139 states and 331018 transitions. [2018-09-10 11:52:18,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2018-09-10 11:52:18,454 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:52:18,455 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:18,455 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:52:18,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1140537675, now seen corresponding path program 1 times [2018-09-10 11:52:18,455 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:52:18,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:18,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:18,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:18,457 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:52:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:19,202 WARN L175 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-10 11:52:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 367 proven. 289 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-10 11:52:20,797 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:52:20,797 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:52:20,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:20,805 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:52:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:21,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:52:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 682 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 11:52:21,269 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:52:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 372 proven. 124 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-09-10 11:52:21,574 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:52:21,574 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 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:52:21,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:21,591 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:52:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:22,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:52:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 474 proven. 4 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2018-09-10 11:52:22,369 INFO L316 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-09-10 11:52:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 168 proven. 344 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2018-09-10 11:52:23,306 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:52:23,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5, 5, 5] total 19 [2018-09-10 11:52:23,307 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:52:23,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-10 11:52:23,308 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-10 11:52:23,308 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2018-09-10 11:52:23,309 INFO L87 Difference]: Start difference. First operand 275139 states and 331018 transitions. Second operand 16 states. [2018-09-10 11:52:23,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-10 11:52:23,311 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:52:23,317 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:52:23,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:52:23 BoogieIcfgContainer [2018-09-10 11:52:23,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:52:23,318 INFO L168 Benchmark]: Toolchain (without parser) took 223548.48 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-10 11:52:23,319 INFO L168 Benchmark]: CDTParser took 0.24 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 11:52:23,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2331.58 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 11:52:23,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 269.84 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 11:52:23,321 INFO L168 Benchmark]: Boogie Preprocessor took 842.29 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 939.5 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-09-10 11:52:23,322 INFO L168 Benchmark]: RCFGBuilder took 10197.33 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 147.3 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -100.8 MB). Peak memory consumption was 736.8 MB. Max. memory is 7.1 GB. [2018-09-10 11:52:23,323 INFO L168 Benchmark]: TraceAbstraction took 209901.12 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.5 GB in the beginning and 2.4 GB in the end (delta: 13.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-10 11:52:23,328 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 2331.58 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 269.84 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 842.29 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 939.5 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10197.33 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 147.3 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -100.8 MB). Peak memory consumption was 736.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209901.12 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.5 GB in the beginning and 2.4 GB in the end (delta: 13.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 126). Cancelled while BasicCegarLoop was constructing difference of abstraction (275139states) and FLOYD_HOARE automaton (currently 2 states, 16 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 209.8s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 167.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3032 SDtfs, 36515 SDslu, 2088 SDs, 0 SdLazy, 71857 SolverSat, 15921 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 123.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10472 GetRequests, 10315 SyntacticMatches, 38 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275139occurred in iteration=11, 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: 19.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 47887 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 8821 NumberOfCodeBlocks, 8821 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 13949 ConstructedInterpolants, 0 QuantifiedInterpolants, 16662321 SizeOfPredicates, 14 NumberOfNonLiveVariables, 8448 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 36 InterpolantComputations, 9 PerfectInterpolantSequences, 15029/16728 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_label47_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-52-23-343.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label47_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-52-23-343.csv Completed graceful shutdown