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/Problem15_label12_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:08:25,635 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:08:25,637 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:08:25,650 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:08:25,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:08:25,652 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:08:25,653 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:08:25,655 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:08:25,656 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:08:25,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:08:25,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:08:25,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:08:25,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:08:25,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:08:25,661 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:08:25,662 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:08:25,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:08:25,665 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:08:25,667 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:08:25,668 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:08:25,670 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:08:25,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:08:25,673 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:08:25,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:08:25,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:08:25,675 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:08:25,679 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:08:25,680 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:08:25,682 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:08:25,685 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:08:25,685 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:08:25,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:08:25,686 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:08:25,686 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:08:25,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:08:25,688 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:08:25,690 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 12:08:25,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:08:25,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:08:25,719 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:08:25,719 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:08:25,719 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:08:25,720 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:08:25,720 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:08:25,720 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:08:25,720 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:08:25,721 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:08:25,721 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:08:25,722 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:08:25,722 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:08:25,722 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:08:25,722 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:08:25,723 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:08:25,724 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:08:25,725 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:08:25,725 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:08:25,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:08:25,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:08:25,726 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:08:25,726 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:08:25,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:08:25,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:08:25,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:08:25,727 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:08:25,727 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:08:25,727 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:08:25,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:08:25,728 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:08:25,728 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:08:25,728 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:08:25,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:08:25,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:08:25,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:08:25,795 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:08:25,796 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:08:25,797 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label12_true-unreach-call.c [2018-09-10 12:08:26,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3d7d715/1a77daf6809c4abe85c49a4fae05b727/FLAG9f0b712a3 [2018-09-10 12:08:26,493 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:08:26,494 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label12_true-unreach-call.c [2018-09-10 12:08:26,516 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3d7d715/1a77daf6809c4abe85c49a4fae05b727/FLAG9f0b712a3 [2018-09-10 12:08:26,532 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3d7d715/1a77daf6809c4abe85c49a4fae05b727 [2018-09-10 12:08:26,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:08:26,550 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:08:26,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:08:26,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:08:26,561 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:08:26,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:08:26" (1/1) ... [2018-09-10 12:08:26,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782dc4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:26, skipping insertion in model container [2018-09-10 12:08:26,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:08:26" (1/1) ... [2018-09-10 12:08:26,827 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:08:27,528 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:08:27,549 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:08:27,858 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:08:27,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27 WrapperNode [2018-09-10 12:08:27,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:08:27,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:08:27,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:08:27,978 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:08:27,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:08:28,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:08:28,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:08:28,276 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:08:28,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (1/1) ... [2018-09-10 12:08:28,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:08:28,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:08:28,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:08:28,866 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:08:28,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (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 12:08:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:08:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:08:28,943 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 12:08:28,944 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 12:08:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:08:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:08:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:08:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:08:28,945 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 12:08:28,945 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 12:08:36,092 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:08:36,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:08:36 BoogieIcfgContainer [2018-09-10 12:08:36,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:08:36,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:08:36,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:08:36,099 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:08:36,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:08:26" (1/3) ... [2018-09-10 12:08:36,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274804b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:08:36, skipping insertion in model container [2018-09-10 12:08:36,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:08:27" (2/3) ... [2018-09-10 12:08:36,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274804b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:08:36, skipping insertion in model container [2018-09-10 12:08:36,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:08:36" (3/3) ... [2018-09-10 12:08:36,103 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label12_true-unreach-call.c [2018-09-10 12:08:36,114 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:08:36,123 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:08:36,183 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:08:36,183 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:08:36,183 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:08:36,184 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:08:36,184 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:08:36,184 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:08:36,184 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:08:36,184 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:08:36,184 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:08:36,225 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-10 12:08:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-10 12:08:36,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:08:36,236 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:08:36,237 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 12:08:36,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1400364244, now seen corresponding path program 1 times [2018-09-10 12:08:36,245 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:08:36,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:08:36,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:08:36,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:08:36,303 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:08:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:08:36,777 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 12:08:36,780 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:08:36,780 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:08:36,780 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:08:36,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:08:36,806 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:08:36,807 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:08:36,811 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-09-10 12:08:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:08:45,224 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-09-10 12:08:45,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:08:45,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2018-09-10 12:08:45,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:08:45,251 INFO L225 Difference]: With dead ends: 1514 [2018-09-10 12:08:45,252 INFO L226 Difference]: Without dead ends: 1070 [2018-09-10 12:08:45,265 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:08:45,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-09-10 12:08:45,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-09-10 12:08:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-09-10 12:08:45,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-09-10 12:08:45,381 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 66 [2018-09-10 12:08:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:08:45,382 INFO L480 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-09-10 12:08:45,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:08:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-09-10 12:08:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-10 12:08:45,392 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:08:45,392 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:08:45,392 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 12:08:45,393 INFO L82 PathProgramCache]: Analyzing trace with hash 864513183, now seen corresponding path program 1 times [2018-09-10 12:08:45,393 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:08:45,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:08:45,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:08:45,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:08:45,395 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:08:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:08:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:08:45,643 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:08:45,643 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:08:45,643 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:08:45,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:08:45,646 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:08:45,646 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:08:45,646 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 4 states. [2018-09-10 12:08:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:08:52,658 INFO L93 Difference]: Finished difference Result 3986 states and 6446 transitions. [2018-09-10 12:08:52,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:08:52,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-09-10 12:08:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:08:52,687 INFO L225 Difference]: With dead ends: 3986 [2018-09-10 12:08:52,687 INFO L226 Difference]: Without dead ends: 2924 [2018-09-10 12:08:52,697 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 12:08:52,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2018-09-10 12:08:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2922. [2018-09-10 12:08:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-09-10 12:08:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 4197 transitions. [2018-09-10 12:08:52,809 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 4197 transitions. Word has length 136 [2018-09-10 12:08:52,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:08:52,810 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 4197 transitions. [2018-09-10 12:08:52,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:08:52,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 4197 transitions. [2018-09-10 12:08:52,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-09-10 12:08:52,823 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:08:52,824 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 12:08:52,824 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 12:08:52,824 INFO L82 PathProgramCache]: Analyzing trace with hash -501981895, now seen corresponding path program 1 times [2018-09-10 12:08:52,825 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:08:52,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:08:52,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:08:52,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:08:52,826 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:08:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:08:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 185 proven. 222 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-10 12:08:53,424 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:08:53,424 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 12:08:53,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:08:53,435 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:08:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:08:53,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:08:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-09-10 12:08:54,024 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:08:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 185 proven. 151 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-09-10 12:08:54,828 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:08:54,828 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-10 12:08:54,829 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:08:54,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:08:54,830 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:08:54,830 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:08:54,831 INFO L87 Difference]: Start difference. First operand 2922 states and 4197 transitions. Second operand 5 states. [2018-09-10 12:09:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:09:02,273 INFO L93 Difference]: Finished difference Result 8745 states and 12792 transitions. [2018-09-10 12:09:02,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 12:09:02,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 323 [2018-09-10 12:09:02,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:09:02,323 INFO L225 Difference]: With dead ends: 8745 [2018-09-10 12:09:02,323 INFO L226 Difference]: Without dead ends: 5829 [2018-09-10 12:09:02,341 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 643 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:09:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5829 states. [2018-09-10 12:09:02,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5829 to 5784. [2018-09-10 12:09:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5784 states. [2018-09-10 12:09:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 7771 transitions. [2018-09-10 12:09:02,539 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 7771 transitions. Word has length 323 [2018-09-10 12:09:02,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:09:02,540 INFO L480 AbstractCegarLoop]: Abstraction has 5784 states and 7771 transitions. [2018-09-10 12:09:02,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:09:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 7771 transitions. [2018-09-10 12:09:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-09-10 12:09:02,550 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:09:02,550 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:09:02,551 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 12:09:02,551 INFO L82 PathProgramCache]: Analyzing trace with hash 849237827, now seen corresponding path program 1 times [2018-09-10 12:09:02,551 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:09:02,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:09:02,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:02,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:09:02,553 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:09:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 176 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:09:03,820 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:09:03,820 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 12:09:03,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:03,832 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:09:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:03,968 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:09:04,523 WARN L175 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-09-10 12:09:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-09-10 12:09:04,659 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:09:04,804 WARN L175 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-09-10 12:09:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 118 proven. 76 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:09:05,994 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:09:05,994 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 5] total 15 [2018-09-10 12:09:05,994 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:09:05,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:09:05,995 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:09:05,996 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-09-10 12:09:05,996 INFO L87 Difference]: Start difference. First operand 5784 states and 7771 transitions. Second operand 5 states. [2018-09-10 12:09:16,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:09:16,929 INFO L93 Difference]: Finished difference Result 15347 states and 21206 transitions. [2018-09-10 12:09:16,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:09:16,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 348 [2018-09-10 12:09:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:09:16,979 INFO L225 Difference]: With dead ends: 15347 [2018-09-10 12:09:16,980 INFO L226 Difference]: Without dead ends: 9569 [2018-09-10 12:09:17,016 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 693 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-09-10 12:09:17,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2018-09-10 12:09:17,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9470. [2018-09-10 12:09:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9470 states. [2018-09-10 12:09:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9470 states to 9470 states and 12814 transitions. [2018-09-10 12:09:17,275 INFO L78 Accepts]: Start accepts. Automaton has 9470 states and 12814 transitions. Word has length 348 [2018-09-10 12:09:17,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:09:17,276 INFO L480 AbstractCegarLoop]: Abstraction has 9470 states and 12814 transitions. [2018-09-10 12:09:17,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:09:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 9470 states and 12814 transitions. [2018-09-10 12:09:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-09-10 12:09:17,292 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:09:17,293 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:09:17,293 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 12:09:17,293 INFO L82 PathProgramCache]: Analyzing trace with hash -158431444, now seen corresponding path program 1 times [2018-09-10 12:09:17,293 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:09:17,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:09:17,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:17,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:09:17,295 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:09:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 9 proven. 112 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-10 12:09:17,882 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:09:17,882 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 12:09:17,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:17,989 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:09:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:18,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:09:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:09:18,274 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:09:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:09:18,831 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:09:18,832 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:09:18,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:18,859 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:09:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:19,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:09:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 124 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:09:19,556 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:09:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:09:19,967 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:09:19,968 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 7, 5] total 19 [2018-09-10 12:09:19,968 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:09:19,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-10 12:09:19,971 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-10 12:09:19,971 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-09-10 12:09:19,972 INFO L87 Difference]: Start difference. First operand 9470 states and 12814 transitions. Second operand 10 states. [2018-09-10 12:09:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:09:51,699 INFO L93 Difference]: Finished difference Result 46475 states and 67776 transitions. [2018-09-10 12:09:51,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-10 12:09:51,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 422 [2018-09-10 12:09:51,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:09:51,872 INFO L225 Difference]: With dead ends: 46475 [2018-09-10 12:09:51,873 INFO L226 Difference]: Without dead ends: 37319 [2018-09-10 12:09:51,966 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1755 GetRequests, 1695 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=694, Invalid=2846, Unknown=0, NotChecked=0, Total=3540 [2018-09-10 12:09:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37319 states. [2018-09-10 12:09:52,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37319 to 35230. [2018-09-10 12:09:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35230 states. [2018-09-10 12:09:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35230 states to 35230 states and 47892 transitions. [2018-09-10 12:09:52,765 INFO L78 Accepts]: Start accepts. Automaton has 35230 states and 47892 transitions. Word has length 422 [2018-09-10 12:09:52,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:09:52,766 INFO L480 AbstractCegarLoop]: Abstraction has 35230 states and 47892 transitions. [2018-09-10 12:09:52,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-10 12:09:52,766 INFO L276 IsEmpty]: Start isEmpty. Operand 35230 states and 47892 transitions. [2018-09-10 12:09:52,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2018-09-10 12:09:52,806 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:09:52,807 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:09:52,807 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 12:09:52,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1675139375, now seen corresponding path program 1 times [2018-09-10 12:09:52,807 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:09:52,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:09:52,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:52,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:09:52,809 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:09:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:54,053 WARN L175 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2018-09-10 12:09:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 567 proven. 86 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-10 12:09:54,538 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:09:54,538 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:09:54,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:54,548 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:09:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:54,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:09:55,341 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 528 proven. 41 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2018-09-10 12:09:55,342 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:09:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 251 proven. 428 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-10 12:09:56,442 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:09:56,443 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:09:56,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:09:56,460 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:09:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:09:56,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:09:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 478 proven. 41 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2018-09-10 12:09:58,151 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:09:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 251 proven. 428 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-10 12:09:59,096 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:09:59,096 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 27 [2018-09-10 12:09:59,096 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:09:59,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-10 12:09:59,097 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-10 12:09:59,098 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2018-09-10 12:09:59,098 INFO L87 Difference]: Start difference. First operand 35230 states and 47892 transitions. Second operand 17 states. [2018-09-10 12:10:23,003 WARN L175 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2018-09-10 12:10:36,232 WARN L175 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2018-09-10 12:10:37,229 WARN L175 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-10 12:10:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:10:46,957 INFO L93 Difference]: Finished difference Result 131338 states and 198474 transitions. [2018-09-10 12:10:46,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-09-10 12:10:46,957 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 543 [2018-09-10 12:10:46,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:10:47,489 INFO L225 Difference]: With dead ends: 131338 [2018-09-10 12:10:47,489 INFO L226 Difference]: Without dead ends: 93560 [2018-09-10 12:10:47,749 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2393 GetRequests, 2252 SyntacticMatches, 6 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7075 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=3170, Invalid=15462, Unknown=0, NotChecked=0, Total=18632 [2018-09-10 12:10:47,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93560 states. [2018-09-10 12:10:49,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93560 to 83357. [2018-09-10 12:10:49,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83357 states. [2018-09-10 12:10:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83357 states to 83357 states and 109753 transitions. [2018-09-10 12:10:50,052 INFO L78 Accepts]: Start accepts. Automaton has 83357 states and 109753 transitions. Word has length 543 [2018-09-10 12:10:50,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:10:50,052 INFO L480 AbstractCegarLoop]: Abstraction has 83357 states and 109753 transitions. [2018-09-10 12:10:50,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-10 12:10:50,053 INFO L276 IsEmpty]: Start isEmpty. Operand 83357 states and 109753 transitions. [2018-09-10 12:10:50,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2018-09-10 12:10:50,222 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:10:50,223 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:50,223 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 12:10:50,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1550481651, now seen corresponding path program 1 times [2018-09-10 12:10:50,224 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:10:50,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:10:50,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:10:50,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:10:50,225 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:10:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:10:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 252 proven. 2 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2018-09-10 12:10:50,981 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:10:50,981 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:10:50,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:10:50,993 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:10:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:10:51,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:10:51,890 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2018-09-10 12:10:51,890 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:10:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 252 proven. 2 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2018-09-10 12:10:52,452 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:10:52,453 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-09-10 12:10:52,453 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:10:52,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:10:52,454 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:10:52,454 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:10:52,454 INFO L87 Difference]: Start difference. First operand 83357 states and 109753 transitions. Second operand 3 states. [2018-09-10 12:10:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:10:56,780 INFO L93 Difference]: Finished difference Result 154666 states and 205824 transitions. [2018-09-10 12:10:56,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:10:56,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 737 [2018-09-10 12:10:56,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:10:57,103 INFO L225 Difference]: With dead ends: 154666 [2018-09-10 12:10:57,103 INFO L226 Difference]: Without dead ends: 83657 [2018-09-10 12:10:57,293 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1476 GetRequests, 1474 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:10:57,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83657 states. [2018-09-10 12:10:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83657 to 83657. [2018-09-10 12:10:59,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83657 states. [2018-09-10 12:10:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83657 states to 83657 states and 110012 transitions. [2018-09-10 12:10:59,317 INFO L78 Accepts]: Start accepts. Automaton has 83657 states and 110012 transitions. Word has length 737 [2018-09-10 12:10:59,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:10:59,318 INFO L480 AbstractCegarLoop]: Abstraction has 83657 states and 110012 transitions. [2018-09-10 12:10:59,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:10:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand 83657 states and 110012 transitions. [2018-09-10 12:10:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2018-09-10 12:10:59,403 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:10:59,403 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:59,404 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 12:10:59,404 INFO L82 PathProgramCache]: Analyzing trace with hash -660790345, now seen corresponding path program 1 times [2018-09-10 12:10:59,404 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:10:59,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:10:59,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:10:59,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:10:59,405 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:10:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:11:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 631 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-09-10 12:11:00,656 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:11:00,656 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 12:11:00,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:11:00,670 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:11:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:11:00,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:11:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 631 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-09-10 12:11:01,922 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:11:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 631 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-09-10 12:11:02,477 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:11:02,477 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:11:02,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:11:02,494 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:11:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:11:03,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:11:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 631 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-09-10 12:11:03,340 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:11:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 631 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-09-10 12:11:04,312 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:11:04,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 12:11:04,313 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:11:04,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:11:04,314 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:11:04,315 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:11:04,315 INFO L87 Difference]: Start difference. First operand 83657 states and 110012 transitions. Second operand 9 states. [2018-09-10 12:11:18,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:11:18,252 INFO L93 Difference]: Finished difference Result 154652 states and 206346 transitions. [2018-09-10 12:11:18,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-10 12:11:18,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 771 [2018-09-10 12:11:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:11:18,506 INFO L225 Difference]: With dead ends: 154652 [2018-09-10 12:11:18,506 INFO L226 Difference]: Without dead ends: 71309 [2018-09-10 12:11:18,759 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3114 GetRequests, 3088 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-10 12:11:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71309 states. [2018-09-10 12:11:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71309 to 67903. [2018-09-10 12:11:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67903 states. [2018-09-10 12:11:20,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67903 states to 67903 states and 78637 transitions. [2018-09-10 12:11:20,690 INFO L78 Accepts]: Start accepts. Automaton has 67903 states and 78637 transitions. Word has length 771 [2018-09-10 12:11:20,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:11:20,692 INFO L480 AbstractCegarLoop]: Abstraction has 67903 states and 78637 transitions. [2018-09-10 12:11:20,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:11:20,692 INFO L276 IsEmpty]: Start isEmpty. Operand 67903 states and 78637 transitions. [2018-09-10 12:11:20,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2018-09-10 12:11:20,740 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:11:20,741 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:11:20,741 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 12:11:20,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1081649087, now seen corresponding path program 1 times [2018-09-10 12:11:20,742 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:11:20,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:11:20,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:11:20,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:11:20,743 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:11:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:11:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 7 proven. 256 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2018-09-10 12:11:21,638 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:11:21,638 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:11:21,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:11:21,646 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:11:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:11:21,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:11:33,377 WARN L175 SmtUtils]: Spent 9.52 s on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2018-09-10 12:11:34,487 WARN L1032 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 Int)) (let ((.cse0 (mod v_prenex_1 299926))) (and (<= .cse0 (+ c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0 300072)) (= .cse0 0) (<= (+ v_prenex_1 44) 0)))) (exists ((v_prenex_2 Int)) (let ((.cse1 (mod v_prenex_2 299926))) (and (<= .cse1 (+ c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0 599998)) (<= (+ v_prenex_2 44) 0) (< v_prenex_2 0) (not (= .cse1 0)))))) is different from true [2018-09-10 12:11:36,682 WARN L175 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 39 [2018-09-10 12:11:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 618 refuted. 0 times theorem prover too weak. 358 trivial. 19 not checked. [2018-09-10 12:11:38,243 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:11:42,827 WARN L175 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2018-09-10 12:11:42,830 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:43,219 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:43,335 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:43,722 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:44,724 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:45,155 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:47,406 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:47,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:47,960 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:50,614 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:50,738 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:50,983 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:51,222 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:51,331 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,344 WARN L1032 $PredicateComparison]: unable to prove that (let ((.cse0 (div (+ c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0 600067) 5))) (and (or (not (= 0 (mod (+ c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0 2) 5))) (forall ((v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0_BEFORE_CALL_11 Int)) (or (< |c_old(~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0)| v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0_BEFORE_CALL_11) (exists ((v_prenex_24 Int)) (and (<= v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0_BEFORE_CALL_11 v_prenex_24) (= (mod (+ v_prenex_24 2) 5) 0) (<= (+ (div (+ v_prenex_24 600067) 5) 147) 0))))) (< 0 (+ .cse0 147))) (or (< 0 (+ .cse0 148)) (forall ((v_prenex_51 Int)) (or (< |c_old(~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a0~0)| v_prenex_51) (exists ((v_prenex_52 Int)) (and (<= v_prenex_51 v_prenex_52) (= (mod (+ v_prenex_52 2) 5) 0) (<= (+ (div (+ v_prenex_52 600067) 5) 147) 0)))))))) is different from true [2018-09-10 12:11:53,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,350 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,354 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,357 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,360 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,364 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,368 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,371 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,375 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,379 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,383 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,387 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,390 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,398 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,401 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,405 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,408 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,412 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,415 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,419 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,423 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,426 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,430 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,434 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,438 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,441 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,445 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,448 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,452 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,455 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,459 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,463 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,466 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,470 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,473 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,477 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,480 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,484 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,488 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,491 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,495 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,499 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,502 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,506 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,509 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,513 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,517 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,520 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,523 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,527 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,531 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,537 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,541 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,548 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,551 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,555 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,558 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,562 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,565 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,569 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,575 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,579 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,582 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,586 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,589 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,592 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,596 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,599 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,603 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,606 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,610 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,614 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,617 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,621 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,624 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,628 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,631 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,634 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,637 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,641 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,644 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,654 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,658 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,661 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,664 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,668 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,671 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,674 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,677 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,681 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,684 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,687 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,691 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,694 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,697 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,701 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,704 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,707 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,710 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,714 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,717 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,721 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,725 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,728 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,732 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,735 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,738 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,742 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,745 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,748 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,751 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,755 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,758 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,761 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,764 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,768 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,771 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,774 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,778 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,781 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,784 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,787 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,791 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,798 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,801 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:53,804 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-10 12:11:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 580 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 55 not checked. [2018-09-10 12:11:56,733 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:11:56,733 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:11:56,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:11:56,749 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:11:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:11:57,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:12:07,040 WARN L175 SmtUtils]: Spent 7.40 s on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-09-10 12:12:09,720 WARN L175 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2018-09-10 12:12:12,149 WARN L175 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39 [2018-09-10 12:12:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 597 proven. 193 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2018-09-10 12:12:13,947 INFO L316 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-09-10 12:12:24,186 WARN L183 SmtUtils]: Removed 3 from assertion stack [2018-09-10 12:12:24,186 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-10 12:12:24,387 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:12:24,388 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:12:24,393 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:12:24,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:12:24 BoogieIcfgContainer [2018-09-10 12:12:24,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:12:24,395 INFO L168 Benchmark]: Toolchain (without parser) took 237849.67 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -351.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-10 12:12:24,396 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 12:12:24,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1424.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:12:24,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 297.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:12:24,398 INFO L168 Benchmark]: Boogie Preprocessor took 590.47 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 875.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:12:24,399 INFO L168 Benchmark]: RCFGBuilder took 7227.98 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 325.9 MB). Peak memory consumption was 325.9 MB. Max. memory is 7.1 GB. [2018-09-10 12:12:24,400 INFO L168 Benchmark]: TraceAbstraction took 228298.84 ms. Allocated memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 201.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-10 12:12:24,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1424.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 297.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 590.47 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 875.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7227.98 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 325.9 MB). Peak memory consumption was 325.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228298.84 ms. Allocated memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 201.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 184]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 184). Cancelled while BasicCegarLoop was analyzing trace of length 778 with TraceHistMax 5, while TraceCheckSpWp was constructing backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 55. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 228.2s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 133.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1796 SDtfs, 24456 SDslu, 3370 SDs, 0 SdLazy, 43027 SolverSat, 10728 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 106.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10116 GetRequests, 9852 SyntacticMatches, 18 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8242 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83657occurred in iteration=7, 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: 7.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 15846 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 16.9s InterpolantComputationTime, 8226 NumberOfCodeBlocks, 8226 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 13080 ConstructedInterpolants, 0 QuantifiedInterpolants, 26971434 SizeOfPredicates, 26 NumberOfNonLiveVariables, 6925 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 26 InterpolantComputations, 5 PerfectInterpolantSequences, 12915/14613 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/Problem15_label12_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-12-24-432.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label12_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-12-24-432.csv Completed graceful shutdown