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/Problem18_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:39:47,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:39:47,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:39:47,628 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:39:47,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:39:47,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:39:47,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:39:47,632 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:39:47,634 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:39:47,635 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:39:47,636 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:39:47,636 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:39:47,637 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:39:47,638 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:39:47,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:39:47,642 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:39:47,643 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:39:47,645 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:39:47,650 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:39:47,651 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:39:47,654 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:39:47,655 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:39:47,657 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:39:47,657 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:39:47,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:39:47,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:39:47,659 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:39:47,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:39:47,661 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:39:47,662 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:39:47,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:39:47,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:39:47,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:39:47,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:39:47,664 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:39:47,665 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:39:47,665 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 12:39:47,689 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:39:47,690 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:39:47,691 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:39:47,691 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:39:47,692 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:39:47,692 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:39:47,692 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:39:47,692 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:39:47,692 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:39:47,693 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:39:47,693 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:39:47,694 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:39:47,694 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:39:47,695 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:39:47,695 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:39:47,695 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:39:47,695 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:39:47,697 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:39:47,697 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:39:47,697 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:39:47,697 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:39:47,698 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:39:47,698 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:39:47,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:39:47,698 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:39:47,699 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:39:47,699 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:39:47,699 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:39:47,699 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:39:47,699 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:39:47,700 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:39:47,700 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:39:47,700 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:39:47,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:39:47,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:39:47,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:39:47,776 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:39:47,776 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:39:47,777 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label44_true-unreach-call.c [2018-09-10 12:39:48,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5075e4c9c/54e89397b36646e4b8dbee9e919f5557/FLAG80e13738a [2018-09-10 12:39:48,549 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:39:48,550 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label44_true-unreach-call.c [2018-09-10 12:39:48,576 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5075e4c9c/54e89397b36646e4b8dbee9e919f5557/FLAG80e13738a [2018-09-10 12:39:48,591 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5075e4c9c/54e89397b36646e4b8dbee9e919f5557 [2018-09-10 12:39:48,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:39:48,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:39:48,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:39:48,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:39:48,618 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:39:48,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:39:48" (1/1) ... [2018-09-10 12:39:48,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ded99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:48, skipping insertion in model container [2018-09-10 12:39:48,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:39:48" (1/1) ... [2018-09-10 12:39:48,970 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:39:49,773 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:39:49,794 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:39:50,308 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:39:50,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50 WrapperNode [2018-09-10 12:39:50,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:39:50,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:39:50,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:39:50,464 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:39:50,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:50,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:50,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:39:50,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:39:50,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:39:50,642 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:39:51,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:51,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:51,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:51,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:51,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:51,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:51,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (1/1) ... [2018-09-10 12:39:51,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:39:51,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:39:51,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:39:51,302 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:39:51,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (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 12:39:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:39:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:39:51,378 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 12:39:51,378 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 12:39:51,379 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 12:39:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 12:39:51,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:39:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:39:51,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:39:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:39:51,380 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 12:39:51,381 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 12:39:59,770 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:39:59,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:39:59 BoogieIcfgContainer [2018-09-10 12:39:59,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:39:59,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:39:59,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:39:59,776 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:39:59,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:39:48" (1/3) ... [2018-09-10 12:39:59,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c9f6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:39:59, skipping insertion in model container [2018-09-10 12:39:59,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:50" (2/3) ... [2018-09-10 12:39:59,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c9f6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:39:59, skipping insertion in model container [2018-09-10 12:39:59,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:39:59" (3/3) ... [2018-09-10 12:39:59,781 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label44_true-unreach-call.c [2018-09-10 12:39:59,791 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:39:59,800 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:39:59,863 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:39:59,863 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:39:59,864 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:39:59,864 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:39:59,864 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:39:59,864 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:39:59,864 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:39:59,865 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:39:59,865 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:39:59,907 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-10 12:39:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-10 12:39:59,919 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:39:59,922 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] [2018-09-10 12:39:59,924 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 12:39:59,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1906297935, now seen corresponding path program 1 times [2018-09-10 12:39:59,931 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:39:59,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:59,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:59,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:59,980 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:00,323 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 12:40:00,326 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:40:00,326 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 12:40:00,326 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:00,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:40:00,349 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:40:00,349 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:40:00,352 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-09-10 12:40:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:06,981 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-09-10 12:40:06,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:40:06,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-09-10 12:40:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:07,014 INFO L225 Difference]: With dead ends: 2251 [2018-09-10 12:40:07,014 INFO L226 Difference]: Without dead ends: 1474 [2018-09-10 12:40:07,026 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:40:07,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-09-10 12:40:07,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-09-10 12:40:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-10 12:40:07,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-09-10 12:40:07,190 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 39 [2018-09-10 12:40:07,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:07,191 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-09-10 12:40:07,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:40:07,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-09-10 12:40:07,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-09-10 12:40:07,198 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:07,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:07,199 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 12:40:07,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1140122242, now seen corresponding path program 1 times [2018-09-10 12:40:07,200 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:07,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:07,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:07,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:07,201 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:40:07,440 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:40:07,440 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 12:40:07,440 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:07,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:40:07,443 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:40:07,443 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 12:40:07,444 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-09-10 12:40:18,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:18,005 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-09-10 12:40:18,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:40:18,006 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2018-09-10 12:40:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:18,027 INFO L225 Difference]: With dead ends: 4419 [2018-09-10 12:40:18,027 INFO L226 Difference]: Without dead ends: 2951 [2018-09-10 12:40:18,033 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:40:18,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-09-10 12:40:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-09-10 12:40:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-09-10 12:40:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-09-10 12:40:18,128 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 109 [2018-09-10 12:40:18,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:18,128 INFO L480 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-09-10 12:40:18,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:40:18,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-09-10 12:40:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-09-10 12:40:18,133 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:18,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:18,133 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 12:40:18,133 INFO L82 PathProgramCache]: Analyzing trace with hash -2131309123, now seen corresponding path program 1 times [2018-09-10 12:40:18,134 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:18,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:18,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:18,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:18,135 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:40:18,359 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:40:18,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:40:18,359 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:18,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:40:18,360 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:40:18,360 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:40:18,361 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 6 states. [2018-09-10 12:40:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:31,321 INFO L93 Difference]: Finished difference Result 11941 states and 22535 transitions. [2018-09-10 12:40:31,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 12:40:31,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-09-10 12:40:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:31,389 INFO L225 Difference]: With dead ends: 11941 [2018-09-10 12:40:31,389 INFO L226 Difference]: Without dead ends: 9022 [2018-09-10 12:40:31,422 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:40:31,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9022 states. [2018-09-10 12:40:31,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9022 to 8934. [2018-09-10 12:40:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8934 states. [2018-09-10 12:40:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8934 states to 8934 states and 13433 transitions. [2018-09-10 12:40:31,960 INFO L78 Accepts]: Start accepts. Automaton has 8934 states and 13433 transitions. Word has length 110 [2018-09-10 12:40:31,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:31,961 INFO L480 AbstractCegarLoop]: Abstraction has 8934 states and 13433 transitions. [2018-09-10 12:40:31,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:40:31,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8934 states and 13433 transitions. [2018-09-10 12:40:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-09-10 12:40:31,971 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:31,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:31,973 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 12:40:31,974 INFO L82 PathProgramCache]: Analyzing trace with hash 69415370, now seen corresponding path program 1 times [2018-09-10 12:40:31,974 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:31,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:31,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:31,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:31,976 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:40:32,479 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:40:32,479 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-10 12:40:32,479 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:32,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:40:32,480 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:40:32,480 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:40:32,481 INFO L87 Difference]: Start difference. First operand 8934 states and 13433 transitions. Second operand 9 states. [2018-09-10 12:40:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:42,232 INFO L93 Difference]: Finished difference Result 22512 states and 35380 transitions. [2018-09-10 12:40:42,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-10 12:40:42,233 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2018-09-10 12:40:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:42,303 INFO L225 Difference]: With dead ends: 22512 [2018-09-10 12:40:42,303 INFO L226 Difference]: Without dead ends: 13584 [2018-09-10 12:40:42,336 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2018-09-10 12:40:42,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13584 states. [2018-09-10 12:40:42,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13584 to 13425. [2018-09-10 12:40:42,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13425 states. [2018-09-10 12:40:42,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 19272 transitions. [2018-09-10 12:40:42,671 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 19272 transitions. Word has length 177 [2018-09-10 12:40:42,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:42,672 INFO L480 AbstractCegarLoop]: Abstraction has 13425 states and 19272 transitions. [2018-09-10 12:40:42,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:40:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 19272 transitions. [2018-09-10 12:40:42,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-09-10 12:40:42,681 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:42,682 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 12:40:42,682 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 12:40:42,682 INFO L82 PathProgramCache]: Analyzing trace with hash 252040318, now seen corresponding path program 1 times [2018-09-10 12:40:42,683 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:42,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:42,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:42,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:42,684 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:43,050 WARN L175 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:40:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 59 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:40:43,207 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:43,207 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 12:40:43,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:43,217 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:43,351 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:43,484 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:40:43,484 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:43,969 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:40:44,002 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:40:44,003 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-09-10 12:40:44,003 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:44,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:40:44,004 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:40:44,005 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:40:44,005 INFO L87 Difference]: Start difference. First operand 13425 states and 19272 transitions. Second operand 3 states. [2018-09-10 12:40:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:49,492 INFO L93 Difference]: Finished difference Result 26844 states and 38592 transitions. [2018-09-10 12:40:49,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:40:49,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2018-09-10 12:40:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:49,561 INFO L225 Difference]: With dead ends: 26844 [2018-09-10 12:40:49,561 INFO L226 Difference]: Without dead ends: 13425 [2018-09-10 12:40:49,630 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 601 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:40:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13425 states. [2018-09-10 12:40:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13425 to 12710. [2018-09-10 12:40:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12710 states. [2018-09-10 12:40:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12710 states to 12710 states and 16332 transitions. [2018-09-10 12:40:50,014 INFO L78 Accepts]: Start accepts. Automaton has 12710 states and 16332 transitions. Word has length 300 [2018-09-10 12:40:50,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:50,015 INFO L480 AbstractCegarLoop]: Abstraction has 12710 states and 16332 transitions. [2018-09-10 12:40:50,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:40:50,016 INFO L276 IsEmpty]: Start isEmpty. Operand 12710 states and 16332 transitions. [2018-09-10 12:40:50,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-09-10 12:40:50,024 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:50,024 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:40:50,025 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 12:40:50,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1489575665, now seen corresponding path program 1 times [2018-09-10 12:40:50,025 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:50,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:50,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:50,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:50,027 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 173 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-10 12:40:50,666 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:50,666 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 12:40:50,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:50,684 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:50,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 275 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-10 12:40:51,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 173 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-10 12:40:52,270 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:52,270 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:40:52,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:52,310 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:52,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 275 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-10 12:40:52,790 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 173 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-10 12:40:53,602 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:40:53,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 12:40:53,603 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:40:53,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:40:53,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:40:53,605 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:40:53,605 INFO L87 Difference]: Start difference. First operand 12710 states and 16332 transitions. Second operand 9 states. [2018-09-10 12:41:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:41:08,329 INFO L93 Difference]: Finished difference Result 47872 states and 69854 transitions. [2018-09-10 12:41:08,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-10 12:41:08,330 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 306 [2018-09-10 12:41:08,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:41:08,565 INFO L225 Difference]: With dead ends: 47872 [2018-09-10 12:41:08,566 INFO L226 Difference]: Without dead ends: 30361 [2018-09-10 12:41:08,708 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1246 GetRequests, 1223 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-10 12:41:08,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30361 states. [2018-09-10 12:41:09,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30361 to 29372. [2018-09-10 12:41:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29372 states. [2018-09-10 12:41:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29372 states to 29372 states and 35084 transitions. [2018-09-10 12:41:09,487 INFO L78 Accepts]: Start accepts. Automaton has 29372 states and 35084 transitions. Word has length 306 [2018-09-10 12:41:09,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:41:09,487 INFO L480 AbstractCegarLoop]: Abstraction has 29372 states and 35084 transitions. [2018-09-10 12:41:09,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:41:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 29372 states and 35084 transitions. [2018-09-10 12:41:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-09-10 12:41:09,496 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:41:09,497 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:41:09,497 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 12:41:09,497 INFO L82 PathProgramCache]: Analyzing trace with hash 939292898, now seen corresponding path program 1 times [2018-09-10 12:41:09,497 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:41:09,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:09,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:09,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:09,499 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:41:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 73 proven. 192 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-10 12:41:10,444 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:10,444 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:41:10,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:10,461 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:10,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-10 12:41:10,788 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-10 12:41:11,074 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:41:11,074 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-10 12:41:11,074 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:41:11,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:41:11,075 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:41:11,076 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:41:11,076 INFO L87 Difference]: Start difference. First operand 29372 states and 35084 transitions. Second operand 3 states. [2018-09-10 12:41:14,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:41:14,862 INFO L93 Difference]: Finished difference Result 70108 states and 87366 transitions. [2018-09-10 12:41:14,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:41:14,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2018-09-10 12:41:14,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:41:15,018 INFO L225 Difference]: With dead ends: 70108 [2018-09-10 12:41:15,018 INFO L226 Difference]: Without dead ends: 40747 [2018-09-10 12:41:15,139 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 678 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:41:15,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40747 states. [2018-09-10 12:41:15,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40747 to 40742. [2018-09-10 12:41:15,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40742 states. [2018-09-10 12:41:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40742 states to 40742 states and 48682 transitions. [2018-09-10 12:41:15,883 INFO L78 Accepts]: Start accepts. Automaton has 40742 states and 48682 transitions. Word has length 339 [2018-09-10 12:41:15,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:41:15,884 INFO L480 AbstractCegarLoop]: Abstraction has 40742 states and 48682 transitions. [2018-09-10 12:41:15,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:41:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand 40742 states and 48682 transitions. [2018-09-10 12:41:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2018-09-10 12:41:15,924 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:41:15,924 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:41:15,925 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 12:41:15,925 INFO L82 PathProgramCache]: Analyzing trace with hash -121856982, now seen corresponding path program 1 times [2018-09-10 12:41:15,925 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:41:15,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:15,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:15,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:15,926 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:41:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:16,282 WARN L175 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:41:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 96 proven. 251 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-09-10 12:41:16,497 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:16,497 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 12:41:16,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:16,506 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:16,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-09-10 12:41:16,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 96 proven. 251 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-09-10 12:41:17,589 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:41:17,589 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 12:41:17,589 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:41:17,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:41:17,590 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:41:17,591 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:41:17,591 INFO L87 Difference]: Start difference. First operand 40742 states and 48682 transitions. Second operand 5 states. [2018-09-10 12:41:21,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:41:21,926 INFO L93 Difference]: Finished difference Result 85229 states and 103230 transitions. [2018-09-10 12:41:21,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:41:21,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 535 [2018-09-10 12:41:21,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:41:22,101 INFO L225 Difference]: With dead ends: 85229 [2018-09-10 12:41:22,101 INFO L226 Difference]: Without dead ends: 45893 [2018-09-10 12:41:22,225 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1079 GetRequests, 1064 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:41:22,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45893 states. [2018-09-10 12:41:23,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45893 to 45863. [2018-09-10 12:41:23,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45863 states. [2018-09-10 12:41:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45863 states to 45863 states and 53802 transitions. [2018-09-10 12:41:23,146 INFO L78 Accepts]: Start accepts. Automaton has 45863 states and 53802 transitions. Word has length 535 [2018-09-10 12:41:23,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:41:23,147 INFO L480 AbstractCegarLoop]: Abstraction has 45863 states and 53802 transitions. [2018-09-10 12:41:23,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:41:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 45863 states and 53802 transitions. [2018-09-10 12:41:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2018-09-10 12:41:23,219 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:41:23,220 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:41:23,220 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 12:41:23,221 INFO L82 PathProgramCache]: Analyzing trace with hash -175373830, now seen corresponding path program 1 times [2018-09-10 12:41:23,221 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:41:23,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:23,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:23,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:23,222 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:41:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:24,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 199 proven. 548 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-09-10 12:41:24,411 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:24,411 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:41:24,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:24,419 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:24,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2018-09-10 12:41:24,858 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2018-09-10 12:41:25,203 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:41:25,204 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [10] total 11 [2018-09-10 12:41:25,204 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:41:25,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:41:25,205 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:41:25,205 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:41:25,205 INFO L87 Difference]: Start difference. First operand 45863 states and 53802 transitions. Second operand 3 states. [2018-09-10 12:41:28,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:41:28,685 INFO L93 Difference]: Finished difference Result 90320 states and 106134 transitions. [2018-09-10 12:41:28,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:41:28,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 661 [2018-09-10 12:41:28,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:41:28,854 INFO L225 Difference]: With dead ends: 90320 [2018-09-10 12:41:28,855 INFO L226 Difference]: Without dead ends: 45863 [2018-09-10 12:41:29,002 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1337 GetRequests, 1324 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:41:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45863 states. [2018-09-10 12:41:29,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45863 to 43011. [2018-09-10 12:41:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43011 states. [2018-09-10 12:41:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43011 states to 43011 states and 49146 transitions. [2018-09-10 12:41:29,873 INFO L78 Accepts]: Start accepts. Automaton has 43011 states and 49146 transitions. Word has length 661 [2018-09-10 12:41:29,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:41:29,874 INFO L480 AbstractCegarLoop]: Abstraction has 43011 states and 49146 transitions. [2018-09-10 12:41:29,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:41:29,874 INFO L276 IsEmpty]: Start isEmpty. Operand 43011 states and 49146 transitions. [2018-09-10 12:41:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2018-09-10 12:41:29,923 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:41:29,924 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 12:41:29,924 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:41:29,924 INFO L82 PathProgramCache]: Analyzing trace with hash -949276116, now seen corresponding path program 1 times [2018-09-10 12:41:29,925 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:41:29,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:29,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:29,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:29,926 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:41:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:30,967 WARN L175 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-09-10 12:41:31,740 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 346 proven. 460 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 12:41:31,740 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:31,740 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 12:41:31,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:31,749 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:31,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 557 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:41:32,792 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 557 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:41:33,192 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:33,192 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:41:33,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:33,210 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:33,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 557 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:41:34,349 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 557 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:41:35,083 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:41:35,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 16 [2018-09-10 12:41:35,085 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:41:35,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-10 12:41:35,086 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-10 12:41:35,086 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-09-10 12:41:35,087 INFO L87 Difference]: Start difference. First operand 43011 states and 49146 transitions. Second operand 15 states. [2018-09-10 12:41:59,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:41:59,196 INFO L93 Difference]: Finished difference Result 95036 states and 112866 transitions. [2018-09-10 12:41:59,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-09-10 12:41:59,196 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 690 [2018-09-10 12:41:59,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:41:59,337 INFO L225 Difference]: With dead ends: 95036 [2018-09-10 12:41:59,338 INFO L226 Difference]: Without dead ends: 44953 [2018-09-10 12:41:59,496 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2883 GetRequests, 2803 SyntacticMatches, 9 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1738 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1066, Invalid=4190, Unknown=0, NotChecked=0, Total=5256 [2018-09-10 12:41:59,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44953 states. [2018-09-10 12:42:00,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44953 to 43709. [2018-09-10 12:42:00,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43709 states. [2018-09-10 12:42:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43709 states to 43709 states and 49479 transitions. [2018-09-10 12:42:00,317 INFO L78 Accepts]: Start accepts. Automaton has 43709 states and 49479 transitions. Word has length 690 [2018-09-10 12:42:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:42:00,318 INFO L480 AbstractCegarLoop]: Abstraction has 43709 states and 49479 transitions. [2018-09-10 12:42:00,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-10 12:42:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 43709 states and 49479 transitions. [2018-09-10 12:42:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2018-09-10 12:42:00,359 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:42:00,359 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 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 12:42:00,360 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:42:00,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1732980473, now seen corresponding path program 1 times [2018-09-10 12:42:00,360 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:42:00,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:00,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:00,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:00,361 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:42:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2001 backedges. 644 proven. 820 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2018-09-10 12:42:02,017 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:42:02,017 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:42:02,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:02,025 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:42:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:02,245 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:42:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2001 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2018-09-10 12:42:02,513 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2001 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2018-09-10 12:42:02,884 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:42:02,885 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [19] total 20 [2018-09-10 12:42:02,885 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:42:02,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:42:02,886 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:42:02,886 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2018-09-10 12:42:02,886 INFO L87 Difference]: Start difference. First operand 43709 states and 49479 transitions. Second operand 3 states. [2018-09-10 12:42:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:42:06,626 INFO L93 Difference]: Finished difference Result 99628 states and 114405 transitions. [2018-09-10 12:42:06,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:42:06,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 736 [2018-09-10 12:42:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:42:06,762 INFO L225 Difference]: With dead ends: 99628 [2018-09-10 12:42:06,762 INFO L226 Difference]: Without dead ends: 56625 [2018-09-10 12:42:07,098 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1492 GetRequests, 1473 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2018-09-10 12:42:07,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56625 states. [2018-09-10 12:42:07,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56625 to 55174. [2018-09-10 12:42:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55174 states. [2018-09-10 12:42:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55174 states to 55174 states and 61965 transitions. [2018-09-10 12:42:08,017 INFO L78 Accepts]: Start accepts. Automaton has 55174 states and 61965 transitions. Word has length 736 [2018-09-10 12:42:08,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:42:08,018 INFO L480 AbstractCegarLoop]: Abstraction has 55174 states and 61965 transitions. [2018-09-10 12:42:08,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:42:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 55174 states and 61965 transitions. [2018-09-10 12:42:08,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2018-09-10 12:42:08,081 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:42:08,081 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:42:08,082 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:42:08,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1175974556, now seen corresponding path program 1 times [2018-09-10 12:42:08,082 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:42:08,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:08,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:08,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:08,084 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:42:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 444 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:42:10,620 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:42:10,620 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 12:42:10,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:10,629 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:42:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:10,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:42:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 444 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:42:12,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 444 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:42:14,168 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:42:14,169 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 12:42:14,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:14,184 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:42:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:14,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:42:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 444 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:42:15,335 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 444 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:42:17,100 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:42:17,102 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 5, 5] total 19 [2018-09-10 12:42:17,102 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:42:17,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-10 12:42:17,104 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-10 12:42:17,104 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2018-09-10 12:42:17,104 INFO L87 Difference]: Start difference. First operand 55174 states and 61965 transitions. Second operand 13 states. [2018-09-10 12:42:19,055 WARN L175 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-09-10 12:42:19,319 WARN L175 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2018-09-10 12:42:19,709 WARN L175 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2018-09-10 12:42:20,907 WARN L175 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-09-10 12:42:24,697 WARN L175 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-09-10 12:42:26,012 WARN L175 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-09-10 12:42:37,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:42:37,838 INFO L93 Difference]: Finished difference Result 138118 states and 167806 transitions. [2018-09-10 12:42:37,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-09-10 12:42:37,838 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 829 [2018-09-10 12:42:37,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:42:38,154 INFO L225 Difference]: With dead ends: 138118 [2018-09-10 12:42:38,155 INFO L226 Difference]: Without dead ends: 83650 [2018-09-10 12:42:38,307 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3424 GetRequests, 3352 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1473 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1086, Invalid=4170, Unknown=0, NotChecked=0, Total=5256 [2018-09-10 12:42:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83650 states. [2018-09-10 12:42:39,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83650 to 79102. [2018-09-10 12:42:39,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79102 states. [2018-09-10 12:42:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79102 states to 79102 states and 89283 transitions. [2018-09-10 12:42:39,749 INFO L78 Accepts]: Start accepts. Automaton has 79102 states and 89283 transitions. Word has length 829 [2018-09-10 12:42:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:42:39,750 INFO L480 AbstractCegarLoop]: Abstraction has 79102 states and 89283 transitions. [2018-09-10 12:42:39,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-10 12:42:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 79102 states and 89283 transitions. [2018-09-10 12:42:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2018-09-10 12:42:39,828 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:42:39,829 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:39,829 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:42:39,829 INFO L82 PathProgramCache]: Analyzing trace with hash -274214451, now seen corresponding path program 1 times [2018-09-10 12:42:39,830 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:42:39,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:39,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:39,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:39,831 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:42:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:41,212 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 284 proven. 460 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 12:42:41,212 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:42:41,212 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:42:41,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:41,220 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:42:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:41,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:42:41,936 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 495 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:42:41,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 495 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:42:42,950 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:42:42,950 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 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:42:42,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:42,966 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:42:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:43,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:42:44,077 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 495 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:42:44,077 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 495 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-09-10 12:42:45,129 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:42:45,130 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 16 [2018-09-10 12:42:45,130 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:42:45,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-10 12:42:45,132 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-10 12:42:45,132 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-09-10 12:42:45,132 INFO L87 Difference]: Start difference. First operand 79102 states and 89283 transitions. Second operand 15 states. [2018-09-10 12:42:59,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:42:59,886 INFO L93 Difference]: Finished difference Result 149766 states and 166915 transitions. [2018-09-10 12:42:59,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-09-10 12:42:59,886 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 845 [2018-09-10 12:42:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:43:00,022 INFO L225 Difference]: With dead ends: 149766 [2018-09-10 12:43:00,023 INFO L226 Difference]: Without dead ends: 58866 [2018-09-10 12:43:00,167 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3492 GetRequests, 3412 SyntacticMatches, 14 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1504 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=870, Invalid=3686, Unknown=0, NotChecked=0, Total=4556 [2018-09-10 12:43:00,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58866 states. [2018-09-10 12:43:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58866 to 53520. [2018-09-10 12:43:00,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53520 states. [2018-09-10 12:43:00,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53520 states to 53520 states and 56387 transitions. [2018-09-10 12:43:00,913 INFO L78 Accepts]: Start accepts. Automaton has 53520 states and 56387 transitions. Word has length 845 [2018-09-10 12:43:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:43:00,914 INFO L480 AbstractCegarLoop]: Abstraction has 53520 states and 56387 transitions. [2018-09-10 12:43:00,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-10 12:43:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 53520 states and 56387 transitions. [2018-09-10 12:43:00,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2018-09-10 12:43:00,956 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:43:00,957 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:00,958 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:43:00,958 INFO L82 PathProgramCache]: Analyzing trace with hash -120416210, now seen corresponding path program 1 times [2018-09-10 12:43:00,958 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:43:00,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:43:00,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:43:00,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:43:00,959 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:43:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:43:02,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2199 backedges. 848 proven. 2 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2018-09-10 12:43:02,959 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:43:02,959 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:43:02,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:43:02,979 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:43:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:43:03,296 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:43:03,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2199 backedges. 848 proven. 2 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2018-09-10 12:43:03,997 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:43:04,356 WARN L175 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-10 12:43:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2199 backedges. 848 proven. 2 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2018-09-10 12:43:05,240 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:43:05,240 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 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:43:05,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:43:05,257 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:43:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:43:05,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:43:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2199 backedges. 848 proven. 2 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2018-09-10 12:43:06,711 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:43:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2199 backedges. 848 proven. 2 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2018-09-10 12:43:07,710 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:43:07,711 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 7 [2018-09-10 12:43:07,711 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:43:07,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:43:07,713 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:43:07,713 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:43:07,713 INFO L87 Difference]: Start difference. First operand 53520 states and 56387 transitions. Second operand 6 states. [2018-09-10 12:43:13,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:43:13,451 INFO L93 Difference]: Finished difference Result 114054 states and 121008 transitions. [2018-09-10 12:43:13,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 12:43:13,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1093 [2018-09-10 12:43:13,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:43:13,584 INFO L225 Difference]: With dead ends: 114054 [2018-09-10 12:43:13,585 INFO L226 Difference]: Without dead ends: 60540 [2018-09-10 12:43:13,640 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4387 GetRequests, 4368 SyntacticMatches, 9 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:43:13,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60540 states. [2018-09-10 12:43:14,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60540 to 56748. [2018-09-10 12:43:14,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56748 states. [2018-09-10 12:43:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56748 states to 56748 states and 59624 transitions. [2018-09-10 12:43:14,764 INFO L78 Accepts]: Start accepts. Automaton has 56748 states and 59624 transitions. Word has length 1093 [2018-09-10 12:43:14,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:43:14,765 INFO L480 AbstractCegarLoop]: Abstraction has 56748 states and 59624 transitions. [2018-09-10 12:43:14,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:43:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 56748 states and 59624 transitions. [2018-09-10 12:43:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1326 [2018-09-10 12:43:14,820 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:43:14,821 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 12:43:14,822 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:43:14,822 INFO L82 PathProgramCache]: Analyzing trace with hash -685956410, now seen corresponding path program 1 times [2018-09-10 12:43:14,823 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:43:14,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:43:14,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:43:14,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:43:14,823 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:43:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:43:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1666 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2018-09-10 12:43:16,359 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:43:16,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:43:16,359 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:43:16,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:43:16,361 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:43:16,361 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:43:16,361 INFO L87 Difference]: Start difference. First operand 56748 states and 59624 transitions. Second operand 4 states. [2018-09-10 12:43:22,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:43:22,582 INFO L93 Difference]: Finished difference Result 141038 states and 149022 transitions. [2018-09-10 12:43:22,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:43:22,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1325 [2018-09-10 12:43:22,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:43:22,584 INFO L225 Difference]: With dead ends: 141038 [2018-09-10 12:43:22,584 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 12:43:22,695 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:43:22,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 12:43:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 12:43:22,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 12:43:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 12:43:22,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1325 [2018-09-10 12:43:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:43:22,697 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 12:43:22,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:43:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 12:43:22,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 12:43:22,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 12:43:22,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:22,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:23,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,308 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:24,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:25,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:26,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:27,980 WARN L175 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 1435 DAG size of output: 839 [2018-09-10 12:43:28,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:28,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:29,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 12:43:30,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-09-10 12:43:30,551 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-10 12:43:30,552 INFO L168 Benchmark]: Toolchain (without parser) took 221949.24 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-10 12:43:30,553 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 12:43:30,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1852.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:43:30,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 177.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-10 12:43:30,556 INFO L168 Benchmark]: Boogie Preprocessor took 660.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 870.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:43:30,557 INFO L168 Benchmark]: RCFGBuilder took 8469.77 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 540.4 MB). Peak memory consumption was 540.4 MB. Max. memory is 7.1 GB. [2018-09-10 12:43:30,558 INFO L168 Benchmark]: TraceAbstraction took 210778.39 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 3.2 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-10 12:43:30,563 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1852.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 177.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 660.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 870.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8469.77 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 540.4 MB). Peak memory consumption was 540.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210778.39 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 3.2 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 105]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1411. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label44_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-43-30-577.csv Completed graceful shutdown